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.
When am I ovulating?
First day of cycle = First day of flow
Luteal phase = days between ovulation until next period. Usually 14 days
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.
- 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 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.
- 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.