One early study reported that sexual intercourse
was associated with earlier onset of labor and reduced the need for labor
induction at 41 weeks . More recent studies have not shown that increased sexual activity
softens the cervix or brings on labor more rapidly.
Although semen contains prostaglandins which are known to soften the cervix and
cause contractions the amount of prostaglandin delivered with each encounter may
not be enough or vary too much in quantity to give consistent results.
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3. Omar NS, et. al., Coitus to expedite the onset of labour: a randomised
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12.PMID:
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4. Tan PC, et. al., Effect of coital activity on onset of labor in women
scheduled for labor induction: a randomized controlled trial.Obstet Gynecol.
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6. Gerozissis K, et. Origin of prostaglandins in human semen. al., J Reprod
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