What stops women from becoming pregnant while they’re already pregnant?

Question

Is there a mechanism in the body that stops this, or is it that the sperm can’t get to an egg anymore?

In: 33

Answer 1

When a woman is pregnant she stops ovulating, this is essentially how hormonal birth control works, it “tricks” the body into thinking (but not literally thinking) it is pregnant.

Also, mucus forms a plug in the cervix and prevents stuff from getting into the uterus.