Pregnancy Week by Week

Due Date Calculator

It is important to estimate your due date so you and your health care provider can schedule proper prenatal care and plan for your baby's birth. Your health care provider uses a method similar to this calculator to give you your due date.

Enter Your Information

What was the date of the first day of your last menstrual period?

This calculator is not intended to replace the evaluation of a health care professional.

Pregnancy Week by Week – Weeks 13 to 16 

Find out what’s happening with your baby as you move into your second trimester of pregnancy.

Pregnancy Week by Week – Weeks 17 to 20 

Learn what to expect as you approach the halfway mark in your pregnancy.

Pregnancy Week by Week – Weeks 21 to 24 

You’ve just embarked on the second half of your pregnancy. Learn what changes are ahead.

Pregnancy Week by Week – Weeks 25 to 28 

Your baby is getting bigger and kicking away! Learn what’s in store as your second trimester draws to a close.

Pregnancy Week by Week – Weeks 29 to 32 

What to expect as you head into the final stretch of your pregnancy.

Pregnancy Week by Week – Weeks 33 to 36 

You’re almost there! Find out what to expect in these last few weeks before your baby arrives.

Pregnancy Week by Week – Weeks 37 to 40 

This is it! Learn what to expect in these last few weeks before your baby arrives.

Our Pregnancy and Childbirth Section 

Learn more about your pregnancy and what to expect after childbirth.

Our Newborn Care Section 

Learn about caring for your newborn after delivery.