Health Facts and Fiction

Sex in the Ninth Month of Pregnancy Can Induce Labor

How true is the claim? The jury is still out, but this may be true. After all, seminal fluid contains chemicals called prostaglandins, which can cause uterine contractions. Sex can also introduce bacteria into the cervical canal, which can spur the release of prostaglandins.

Why it gets repeated: It makes sense. In a small study last year, Malaysian researchers found that women more than 36 weeks pregnant who had sex at least once a week cut their gestation by about four days and were less likely to deliver past 41 weeks or require induction. Experts say that this study needs to be followed up by more rigorous, less anecdotal research before they advise women to use intercourse as a method of bringing on labor.

Bottom line: If you have an uncomplicated pregnancy, go for it. It may take your mind off counting down the days.