That being said, you should know that having sex at the end of your pregnancy may very well help induce labor, whether semen is involved or not. Risks include having a stillbirth, having a large baby and getting high blood pressure during pregnancy Sexual intercourse at term has been associated with earlier onset of labour and reduced need for induction at 41 weeks' gestation (tan 2006)
How Does An Induction Work In Pregnancy at Alfred Little blog
It is a non‐medical method allowing the woman greater control over the process of attempting to induce labour.
If you’re near or past your due date, you may have heard that sex can help induce labor
Learn if intercourse can really help induce labor and when to get help. Sex can sometimes stimulate labor, but it’s not a guaranteed or primary method to induce childbirth. Research shows that inducing labor during this time lowers several risks