Ovulation, day by day

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Ovulation calendar

The ovulation calendar shows what is happening in your body, the possible date of ovulation, when your most fertile days are and when you may try a pregnancy test. You'll also find the link for the ovulation ticker, provided you entered a date first.

Click here for the ovulation ticker!
Click here for the printer version
Enter a new date

A new cycle starts here!
	Wed, September 2nd ,2015 1st day, menstrual phase. 25 days to your next cycle. • The menstrual phase usually lasts 3 to 5 days, but anywhere from 2 to 7 days is considered normal
	Thu, September 3rd ,2015 2nd day, menstrual phase. 24 days to your next cycle. • The average blood loss during menstruation is 35 millilitres with 10-80 ml considered normal
	Fri, September 4th ,2015 3rd day, menstrual phase. 23 days to your next cycle. • Because of this blood loss, women have higher dietary requirements for iron than do males to prevent iron deficiency.
	Sat, September 5th ,2015 4th day, menstrual phase. 22 days to your next cycle. • Many women experience uterine cramps during the menstrual phase.
	Sun, September 6th ,2015 5th day, menstrual phase. 21 days to your next cycle.
	Mon, September 7th ,2015 6th day, follicular phase. 20 days to your next cycle. • The lining of the uterus is at its most thin. Levels of estrogen and progesterone are at their lowest. • Through the influence of a rise in follicle stimulating hormone (FSH), five to seven tertiary-stage ovarian follicles are recruited for entry into the next menstrual cycle
	Tue, September 8th ,2015 7th day, follicular phase. 19 days to your next cycle. • These follicles, that have been growing for the better part of a year in a process known as folliculogenesis, compete with each other for dominance. • Research supports the suggestion that a bright 100W bedside lamp used on 5 consecutive nights prior to ovulation can cause reduction of long menstrual cycles.
	Wed, September 9th ,2015 8th day, follicular phase. 18 days to your next cycle. • Under the influence of several hormones, all but one of these follicles will undergo atresia, while one (or occasionally two) dominant follicles will continue to maturity. • Normal sperm life inside a woman ranges from 1-5 days, though a pregnancy resulting from sperm life of 8 days has been documented. If you are trying for a baby, it would be a good time to try today and in the next 5 days. Because ovulation dates are different for every woman and each cycle, it is suggested that if a woman wants to conceive, the most fertile time occurs between today and the next 9 days to come.
	Thu, September 10th ,2015 9th day, follicular phase. 17 days to your next cycle. • Your fertility increases throughout the follicular phase • This day (as well as the the next 3 days) is a good day to try for a baby.
	Fri, September 11th ,2015 10th day, follicular phase. 16 days to your next cycle. • As they mature, the follicles secrete increasing amounts of estradiol, an estrogen. The estrogens that follicles secrete initiate the formation of a new layer of endometrium in the uterus. The estrogen also stimulates crypts in the cervix to produce fertile cervical mucus • When the egg has matured, it secretes enough estradiol to trigger the acute release of luteinizing hormone (LH).
	Sat, September 12th ,2015 11th day, follicular phase. 15 days to your next cycle. • The time needed for recruitment of the follicles and selecting the best (dominant) follicle for the ovulation causes variations in the length of the cycle. • In the average cycle this LH surge starts around cycle day 12 and may last 48 hours.
	Sun, September 13th ,2015 12th day, ovulation phase. 14 days to your next cycle. • Ovulation: The release of the ovum. The egg is swept into the fallopian tube. If fertilization occurs, it will happen in the fallopian tube, today or tomorrow. (A released egg can be fertilised for up to 48 hours)
	Mon, September 14th ,2015 13th day, luteal phase. 13 days to your next cycle. • After ovulation, the follicle which held the egg transforms into the corpus luteum. It will produce progesterone for approximately the next 2 weeks. Progesterone helps forming a lining receptive for implantation and supportive of the early pregnancy.
	Tue, September 15th ,2015 14th day, luteal phase. 12 days to your next cycle. • 24-30 hours after fertilization the first cell division (mitosis) takes place. • Progesterone raises the body temperature to provide a fertile environment for the ovum by 0.25 °C to 0.5 °C (0.5 °F to 1.0 °F), thus women who record their basal body temperature on a daily basis will notice that they have entered the luteal phase.
	Wed, September 16th ,2015 15th day, luteal phase. 11 days to your next cycle. • If fertilization of an egg has occurred, the egg and sperm united are called a zygote. It will travel through the fallopian tube, making its way to the uterus.
	Thu, September 17th ,2015 16th day, luteal phase. 10 days to your next cycle. • If an egg is not fertilised within 24-48 hours of ovulation, the rest of the luteal phase is considered to be relatively infertile.
	Fri, September 18th ,2015 17th day, luteal phase. 9 days to your next cycle. The zygote's rapid cell division from 2 to 4 to 8 now reached 16 cells. By this day the ball of cells is called a morula.
	Sat, September 19th ,2015 18th day, luteal phase. 8 days to your next cycle.
	Sun, September 20th ,2015 19th day, luteal phase. 7 days to your next cycle. The morula's rapid cell division from 16 to 32 to 64 now reached 128 cells. A cavity is formed within the ball of cells. It is now called a blastocyst or blastula. Very soon the blastocyst will have so many cells that individual cells are no longer recognizable
	Mon, September 21st ,2015 20th day, luteal phase. 6 days to your next cycle. • A fertilised blastocyst will implant itself into the uterine. The point of implantation becomes the origin for the placenta and umbilical cord. Note that impantation can occur several today, but also several days from now...
	Tue, September 22nd ,2015 21th day, luteal phase. 5 days to your next cycle. • Shortly after implantation, the growing embryo will signal its existence to the maternal system. One very early signal consists of human chorionic gonadotropin (hCG), a hormone that pregnancy tests can measure
	Wed, September 23rd ,2015 22th day, luteal phase. 4 days to your next cycle. • The level of hCG is increasing, but still too low to measure with a home pregnancy test. The level will double every 2 or 3 days.
	Thu, September 24th ,2015 23th day, luteal phase. 3 days to your next cycle. • a hCG blood test may now see an increased hCG level. It is still too early for a home pregnancy test measuring the hCG in the urine test.
	Fri, September 25th ,2015 24th day, luteal phase. 2 days to your next cycle.
	Sat, September 26th ,2015 25th day, luteal phase. 1 days to your next cycle. • There is a good chance that a home pregnancy test can pick up enough hCG to confirm a pregnancy. A negative test doesn't mean you're not pregnant, there may simply not be enough hCG yet because it is to early after implantation.
A new cycle starts here!
	Sun, September 27th ,2015 1st day, menstrual phase. 25 days to your next cycle. • The menstrual phase usually lasts 3 to 5 days, but anywhere from 2 to 7 days is considered normal
	Mon, September 28th ,2015 2nd day, menstrual phase. 24 days to your next cycle. • The average blood loss during menstruation is 35 millilitres with 10-80 ml considered normal
	Tue, September 29th ,2015 3rd day, menstrual phase. 23 days to your next cycle. • Because of this blood loss, women have higher dietary requirements for iron than do males to prevent iron deficiency.
	Wed, September 30th ,2015 4th day, menstrual phase. 22 days to your next cycle. • Many women experience uterine cramps during the menstrual phase.
	Thu, October 1st ,2015 5th day, menstrual phase. 21 days to your next cycle.
	Fri, October 2nd ,2015 6th day, follicular phase. 20 days to your next cycle. • The lining of the uterus is at its most thin. Levels of estrogen and progesterone are at their lowest. • Through the influence of a rise in follicle stimulating hormone (FSH), five to seven tertiary-stage ovarian follicles are recruited for entry into the next menstrual cycle
	Sat, October 3rd ,2015 7th day, follicular phase. 19 days to your next cycle. • These follicles, that have been growing for the better part of a year in a process known as folliculogenesis, compete with each other for dominance. • Research supports the suggestion that a bright 100W bedside lamp used on 5 consecutive nights prior to ovulation can cause reduction of long menstrual cycles.
	Sun, October 4th ,2015 8th day, follicular phase. 18 days to your next cycle. • Under the influence of several hormones, all but one of these follicles will undergo atresia, while one (or occasionally two) dominant follicles will continue to maturity. • Normal sperm life inside a woman ranges from 1-5 days, though a pregnancy resulting from sperm life of 8 days has been documented. If you are trying for a baby, it would be a good time to try today and in the next 5 days. Because ovulation dates are different for every woman and each cycle, it is suggested that if a woman wants to conceive, the most fertile time occurs between today and the next 9 days to come.
	Mon, October 5th ,2015 9th day, follicular phase. 17 days to your next cycle. • Your fertility increases throughout the follicular phase • This day (as well as the the next 3 days) is a good day to try for a baby.
	Tue, October 6th ,2015 10th day, follicular phase. 16 days to your next cycle. • As they mature, the follicles secrete increasing amounts of estradiol, an estrogen. The estrogens that follicles secrete initiate the formation of a new layer of endometrium in the uterus. The estrogen also stimulates crypts in the cervix to produce fertile cervical mucus • When the egg has matured, it secretes enough estradiol to trigger the acute release of luteinizing hormone (LH).
	Wed, October 7th ,2015 11th day, follicular phase. 15 days to your next cycle. • The time needed for recruitment of the follicles and selecting the best (dominant) follicle for the ovulation causes variations in the length of the cycle. • In the average cycle this LH surge starts around cycle day 12 and may last 48 hours.
	Thu, October 8th ,2015 12th day, ovulation phase. 14 days to your next cycle. • Ovulation: The release of the ovum. The egg is swept into the fallopian tube. If fertilization occurs, it will happen in the fallopian tube, today or tomorrow. (A released egg can be fertilised for up to 48 hours)
	Fri, October 9th ,2015 13th day, luteal phase. 13 days to your next cycle. • After ovulation, the follicle which held the egg transforms into the corpus luteum. It will produce progesterone for approximately the next 2 weeks. Progesterone helps forming a lining receptive for implantation and supportive of the early pregnancy.
	Sat, October 10th ,2015 14th day, luteal phase. 12 days to your next cycle. • 24-30 hours after fertilization the first cell division (mitosis) takes place. • Progesterone raises the body temperature to provide a fertile environment for the ovum by 0.25 °C to 0.5 °C (0.5 °F to 1.0 °F), thus women who record their basal body temperature on a daily basis will notice that they have entered the luteal phase.
	Sun, October 11th ,2015 15th day, luteal phase. 11 days to your next cycle. • If fertilization of an egg has occurred, the egg and sperm united are called a zygote. It will travel through the fallopian tube, making its way to the uterus.
	Mon, October 12th ,2015 16th day, luteal phase. 10 days to your next cycle. • If an egg is not fertilised within 24-48 hours of ovulation, the rest of the luteal phase is considered to be relatively infertile.
	Tue, October 13th ,2015 17th day, luteal phase. 9 days to your next cycle. The zygote's rapid cell division from 2 to 4 to 8 now reached 16 cells. By this day the ball of cells is called a morula.
	Wed, October 14th ,2015 18th day, luteal phase. 8 days to your next cycle.
	Thu, October 15th ,2015 19th day, luteal phase. 7 days to your next cycle. The morula's rapid cell division from 16 to 32 to 64 now reached 128 cells. A cavity is formed within the ball of cells. It is now called a blastocyst or blastula. Very soon the blastocyst will have so many cells that individual cells are no longer recognizable
	Fri, October 16th ,2015 20th day, luteal phase. 6 days to your next cycle. • A fertilised blastocyst will implant itself into the uterine. The point of implantation becomes the origin for the placenta and umbilical cord. Note that impantation can occur several today, but also several days from now...
	Sat, October 17th ,2015 21th day, luteal phase. 5 days to your next cycle. • Shortly after implantation, the growing embryo will signal its existence to the maternal system. One very early signal consists of human chorionic gonadotropin (hCG), a hormone that pregnancy tests can measure
	Sun, October 18th ,2015 22th day, luteal phase. 4 days to your next cycle. • The level of hCG is increasing, but still too low to measure with a home pregnancy test. The level will double every 2 or 3 days.
	Mon, October 19th ,2015 23th day, luteal phase. 3 days to your next cycle. • a hCG blood test may now see an increased hCG level. It is still too early for a home pregnancy test measuring the hCG in the urine test.
	Tue, October 20th ,2015 24th day, luteal phase. 2 days to your next cycle.
	Wed, October 21st ,2015 25th day, luteal phase. 1 days to your next cycle. • There is a good chance that a home pregnancy test can pick up enough hCG to confirm a pregnancy. A negative test doesn't mean you're not pregnant, there may simply not be enough hCG yet because it is to early after implantation.
A new cycle starts here!
	Thu, October 22nd ,2015 1st day, menstrual phase. 25 days to your next cycle. • The menstrual phase usually lasts 3 to 5 days, but anywhere from 2 to 7 days is considered normal

Things to know

A woman's total egg supply is formed in fetal life, to be ovulated decades later.
The fertile period starts at the menarche (first menstrual period) and ends with the menopause.
Over her reproductive lifetime a woman will ovulate approximately 400 to 450 times.
Unlike almost all other species, humans are the only mammal to lack obvious, visible manifestations of ovulation

Cycle in general

Cycle length can also vary from month to month, with up to 8 days variation between cycles still considered as a regular menstrual cycle.
The medical term for cycles with intervals of 21 days or fewer is polymenorrhea
The medical term for cycles with intervals exceeding 35 days is oligomenorrhea. Long cycles are usually associated with ovulation problems:
- there may be no ovulation (anovulation),
- ovulation may be very irregular,
- ovulation is abnormal (inadequate egg quality).
The medical term for cycles with intervals exceeding 180 days is amenorrhea. Women with very low body fat, such as athletes, may cease to menstruate. Amenorrhea also occurs during pregnancy.
Stressors as subtle as night work or shift work can lead to irregular menstrual cycles. Keep stress levels down.
Your cycle may fluctuate for a variety of reasons, including illness, travel, stress, exercise level, and significant weight loss or gain. Adolescents, women who are breastfeeding, and those who have recently stopped taking birth control pills also commonly experience fluctuations in their menstrual cycles.

Follicular phase

The length of the follicular phase (aka proliferative phase) — and consequently the length of the menstrual cycle — may vary widely.
Age dependant: 14.2 days in women aged 18-24 years, 10.4 days in women aged 40-44 years.
Diet: Eating a low fat diet may lengthen this phase by as much as 2 days
If you were using oral contraceptives for a longer period, or in the last 90 days this phase may be longer.
women with a history of miscarriages may have a shorter phase (-2 days)
(occasional) marijuana use may result in a longer phase ((+2) 3,5 days)
If you ovulate very late in a cycle, (more than 21 days into your cycle) and have problems getting pregnant or maintaining a pregnancy visit your doctor. Treatment may help you achieve a more succesful cycle.

(Pre-)Ovulation

Pre ovulation pain, detection of perovular cervical mucus, and the change in physical character and position of the cervix are reliable signs of preovulation
- Pre-ovulation pain, or mittelschmerz can appear suddenly and usually subsides within hours. In some women, the mittelschmerz is localized enough so that they can tell which of their two ovaries provided the egg in a given month.
- During, and several days before ovulation the cervix may feel softer and wetter and its position we be higher than before and after ovulation
- During, and several days before ovulation the volume of your cervical fluid may increase. It will also be clearer, and you will be able to stretch it furter between your forefinger and thumb than before and after ovulation
A woman's vulva may swell just prior to ovulation, especially the side on which ovulation will occur
Some woman may spot a little blood during ovulation. This is normal and occurs when the egg ovulates. This spotting is more common in longer cycles.

Lutheal phase

The average luteal phase length is 14 days. (ranging from 10-16 days)
It is also called DPO. (Days Past Ovulation)
A short luteal phase lasts less than 11 days may be associated with a luteal phase defect. (LPD) If you conceive and you have a luteal phase defect, you will have an early miscarriage. Luteal phase defect can be easily corrected, for example with vitamin B6, progesterone cream and/or Clomid (increases progesterone through enhancing follicular development), depending on the cause.
The length of your luteal phase can be measured through hormone-specific blood tests or by charting your basal body temperature.

If you're seriously overweight, speak to your doctor about starting a gradual weight-loss program. Obesity may affect hormonal signals to the ovaries and interfere with ovulation. In addition, increased weight can cause insulin levels to climb, causing the ovaries to overproduce male hormones and stop releasing eggs.

Ovulation calendar

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A new cycle starts here!

Wed, September 2nd ,2015

Thu, September 3rd ,2015

Fri, September 4th ,2015

Sat, September 5th ,2015

Sun, September 6th ,2015

Mon, September 7th ,2015

Tue, September 8th ,2015

Wed, September 9th ,2015

Thu, September 10th ,2015

Fri, September 11th ,2015

Sat, September 12th ,2015

Sun, September 13th ,2015

Mon, September 14th ,2015

Tue, September 15th ,2015

Wed, September 16th ,2015

Thu, September 17th ,2015

Fri, September 18th ,2015

Sat, September 19th ,2015

Sun, September 20th ,2015

Mon, September 21st ,2015

Tue, September 22nd ,2015

Wed, September 23rd ,2015

Thu, September 24th ,2015

Fri, September 25th ,2015

Sat, September 26th ,2015

A new cycle starts here!

Sun, September 27th ,2015

Mon, September 28th ,2015

Tue, September 29th ,2015

Wed, September 30th ,2015

Thu, October 1st ,2015

Fri, October 2nd ,2015

Sat, October 3rd ,2015

Sun, October 4th ,2015

Mon, October 5th ,2015

Tue, October 6th ,2015

Wed, October 7th ,2015

Thu, October 8th ,2015

Fri, October 9th ,2015

Sat, October 10th ,2015

Sun, October 11th ,2015

Mon, October 12th ,2015

Tue, October 13th ,2015

Wed, October 14th ,2015

Thu, October 15th ,2015

Fri, October 16th ,2015

Sat, October 17th ,2015

Sun, October 18th ,2015

Mon, October 19th ,2015

Tue, October 20th ,2015

Wed, October 21st ,2015

A new cycle starts here!

Thu, October 22nd ,2015

Things to know

Cycle in general

Follicular phase

(Pre-)Ovulation

Lutheal phase