How can I calculate how many weeks pregnant I am?
You take a pregnancy test and see the two stripes. The results are positive: you’re pregnant. Now what? Whether you decide to continue with the pregnancy or not, a good first step is to calculate how many weeks you’ve been pregnant (this is called calculating your gestational duration, or gestational age). That way, you'll know your options. Generally, if you go to see a doctor or nurse, they’ll give you an ultrasound and tell you how far along you are in your pregnancy. You can also calculate the gestational duration, even before you go to your first appointment. Here’s how to do the math.How to calculate gestational durationGestational duration is counted from the first day of your last period. This...