How to use the Pregnancy Calculator


Choose the first day of your last period


Select the length of your cycle


If needed, change the week of pregnancy


View and share the estimated result!

First day of your last period:
Length of your cycle:
Week of pregnancy: changedate
Date to calculate from:
Probable date of conception:
End of first trimester:
End of second trimester:
Estimated due date:


Welcome to free online pregnancy calculator. If you think you have early signs of pregnancy and are displaying pregnancy symptoms such as morning sickness, then our pregnancy calculator will help you determine when your likely due date is. Our tool contains a due date calculator which you can share with friends and family through Facebook, Twitter or by email.

Our pregnancy calculator is easy to use. In just a few simple steps you determine your due date (a) choose the first day of your last period; (b) select the length of your cycle; (c) view and share the estimated result with social media or email. We also offer a number of other tools, including an ovulation calculator to create your own personal ovulation calendar.

Our ovulation calculator is another useful tool that will help you determine the best time to get pregnant.

Be sure to read our blog and use our pregnancy resources.