It sounds like it could be plausible — when a woman has an orgasm, her uterus contracts, creating a vacuum-type effect that could help usher the sperm into the uterus. But research doesn't bear this idea out. In fact, a recent study of more than 8,000 women found a weak correlation between orgasm rate and the number of children women had — but when other factors were included, the correlation disappeared. In other words, while orgasms make sex more fun, they won't help your conception hopes. A better bet? Timing sex with your fertile window to increase your odds of conception.
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