Most pregnancies last around 40 weeks (or 38 weeks from conception), so typically the best way to estimate your due date is to count 40 weeks, or 280 days, from the first day of your last menstrual period (LMP). Another way to do it is to subtract three months from the first day of your last period and add seven days.

Can a guy tell if youre not a virgin?

Will he be able to tell youre a virgin by looking at you naked? No. In fact, some experts say there may be no way to tell if a woman is a virgin, even with gynecological tests.