Pregnancy Calculator

If you are pregnant or want to become pregnant, you might find this calculator useful. The calculator helps you work out key dates in your fertility and pregnancy cycles and can be adjusted to suit your menstrual cycle length. Click on the small calendar icon to pick the appropriate dates:

If you are pregnant, to determine your due date, enter the date of your last menstrual period.
If you know the date of conception or when you ovulate, enter that date.
If you already know your due date, you can enter that to "calculate backwards" when conception occurred.

Calculate according to:		Last period Ovulation/Conception Due date
Date:
Cycle length:

Last period:
Next period:
Fertility window:
Ovulation:
First Trimester:
Second Trimester:
Fetal Age:
Due date:
Star sign: