How many weeks pregnant ?

If you go by your last menses, you are 6 weeks + 5 days pregnant today (3 Dec). However, this is not the most accurate, and you’ll need a dating ultrasound scan to get a more accurate result. You may also ask how it’s possible for you to be pregnant earlier than your wedding date (assuming that’s the first time you were intimate). Well, the 40 weeks of pregnancy is actually calculated in relation to your menses date, so it doesn’t mean you got pregnant 6 weeks + 5 days ago.