In the 1990s, prior to the induction craze, a group of researchers decided to take a closer look at when babies are actually born based on their conception. What they found quietly challenged centuries of tradition. First-time mothers carried their babies for an average of 41 weeks and 1 day, while women who had given birth before averaged 40 weeks and 3 days. If this is the average, it means there are women who go into labor before and after. When we look just at pregnancies that extend past th