The Pregnancy Calculator helps determine when you conceived, when your NT ultrasound is due, when your anatomy scan is due and what your projected delivery date is.
Most pregnancies last around 40 weeks (or 38 weeks from conception), so the best way to estimate your pregnancy due date is to count 40 weeks from the start of your last period. This is how your doctor will estimate your due date – and it’s a pretty solid target. But remember: It’s just as normal to deliver a week or two before or after.
Not pregnant yet but trying? Check out the Ovulation Calculator.