Pregnancy: Week 0 & 1Menstruation to Ovulation 

Week 0 & 1

Menstruation to Ovulation

Week 1 starts on day 7 and goes up to day 14. It is your second pregnancy week.

The first two pregnancy weeks start on day 0.
As soon as you ovulate you're in week 2

Length of your baby: 0 millimeter
Weight of your baby: 0 grams / 0 ozs

So you think you may be 1 week pregnant.

This week is one of the most confusing. If you are here it is most likely because you have missed a period and have worked it out that you are about 1 week pregnant. Well.....because all women are different and menstrual/ovulation cycles vary, it could be that you are anything from 1 to 4 weeks pregnant. There are also other factors which can contribute to a missed or late period so don't panic or celebrate just yet. 

Other changes in your mind and body, apart from pregnancy such as weight gain/loss, medication, illness, stress, major trauma, hormonal changes etc. can also result in a late or missed period and you should always visit your doctor if you are worried.

If however, you are certain you are pregnant, knowing exactly how far along you are is vital. We have provided a handy, easy to use calculator for you to work this out.

Please fill in the required information to find out which week of pregnancy you are in. Results will automatically re-direct you to the appropriate week.


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