When does pregnancy really begin? It’s probably not when you think.More than three weeks early? You and your baby will be considered pre-term, which has major health implications. Past your due date? Your doctor will probably want to induce you after one to two weeks. It’s tempting to brush off a few days as a simple rounding error, but here’s why you should care: despite their inaccurate calculations, due dates are still used as hard medical deadlines.
Even more surprising, a whopping 30% of women don’t give birth within the two-week range of their due date. In fact, only 4% of women actually give birth on their due dates, with a majority giving birth between one and four days after the calculated due date. Finding out how many weeks pregnant you are may seem like a straightforward question, but due date calculation is often inaccurate.