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December 16, 2011 - 04:32. Having sex more often can reduce the risk of developing a serious medical condition called pre-eclampsia during pregnancy. Sperm contains a special protein that increases the chances for a successful pregnancy.
In general, every other night around the time of ovulation helps increase your chance of getting pregnant, Goldfarb says. Sperm can live up to 72 hours after intercourse. The best suggestion is to have sex regularly -- when you're ovulating, and when you're not.