Is it true that having sex helps soften the cervix because of sperm?

Question

Answer

Yes, it can if your body is ready. Semen contains a hormonelike substance called prostaglandin and orgasms release oxytocin. 
A common method of medical induction is Cervidil (a vaginal insert medicine that helps soften the cervix) followed by pitocin (a form of oxytocin). Cervidil contains dinoprostone, similar to a natural prostaglandin found in your body. So basically prostaglandin followed by oxytocin.

Answer

It's how I went into labor with my son!

Is it true that having sex helps soften the cervix because of sperm?

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