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Having sex to start labor.
Why does having sex late in pregnancy help to start labor but its ok to have as much as you want throughout the whole pregnancy. Can it not start premature labor?
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2080675 tn?1334186046
Apparently sperm have something in it that helps soften the cervix. But ur cervix won't soften until it's ready to. So sex can bring on labour but not until Ur ready.
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1943295 tn?1388242924
Its the rush of blood to the cervix that causes labor. When you you have your O the cervix fills with blood and your uterus muscles start to cramp which triggers contractions. My doctor told me that you experience minor contractions that you may not know are contractions once you are closer to your due date.....this is preparing the cervix and uterus for the birth. This is why when you have sex closer to your due date you may go onto labor....your body is already preparing for labor and an O can jump start it!
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1958787 tn?1325379891
Sex can start labor a number of ways the first is the roughness of the penis near your cervix which can cause contractions. second, sperm has a chemical that affects the cervix and causes dilation. third different positions can can irriation on the cervix and cause you to contract and dilate.
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That makes perfect sense. Thanks everyone.
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1806883 tn?1458324604
also if you orgasim, thats your uterus contracting and it can keep on contracting so you start labour, it can also trigger the release of oxytocin the "contraction"hormone and semen contains a high concentration of prostaglandins which may help to ripen/soften  the cervix :)
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187316 tn?1386360282
Its also why if you are at risk for preterm labor that tell you no sex and put you on pelvic rest.
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