How many weeks pregnant?

I first heard of counting a pregnancy in weeks at my very first OB appointment. But no matter how many times I tried to add up the months of pregnancy, it didn’t work. There were way too many weeks to cram into nine months. Despite the fact that I…

Pregnant Woman Holding Ultrasound of her Baby

I first heard of counting a pregnancy in weeks at my very first OB appointment. But no matter how many times I tried to add up the months of pregnancy, it didn’t work. There were way too many weeks to cram into nine months. Despite the fact that I married a mathematician, math is not my favorite subject, though I quickly saw the benefit of calculating the weeks of pregnancy based on a single date, like the last menstrual period (LMP), to help make a universal time line for all women.

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