How can I calculate how many weeks pregnant I am?

You’re pregnant — now what? A good first step is to calculate how many weeks you’ve been pregnant, also known as gestational age. Here's how to do the math.

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So How Does Pregnancy Actually Happen?

Oct. 20, 2021

How soon after unprotected sex can I take a pregnancy test?

June 29, 2020

My period was late. I had two positive pregnancy tests and then three days later I got my period. What happened?

May 21, 2020

I haven’t had my period in 2 months. I’ve had one period right after we had protected sex, and nothing since then. Could I be pregnant? I don’t have access to pregnancy tests or anything like that.

April 27, 2020

Can I take a pregnancy test right after sex?

Aug. 8, 2014

I've taken several pregnancy tests and all but one were negative. Should I believe the positive one?

Dec. 13, 2011

I missed my period, but both pregnancy tests I took were negative. What does this mean?

Sept. 12, 2011

Can I know if I’m pregnant 10 days after having sex?

Aug. 16, 2011

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