How to Get Pregnant - Ch. 1: Natural Pregnancy - The Infertility Center of St. Louis - Vagina stopping sperm from reaching egg
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The cervical cap, or FemCap, is a soft rubbery cup shaped like a thimble and made from silicone. It fits snugly around the cervix, which is the opening to the uterus (womb). How it works: It prevents. Do you feel okay putting something into your vagina, like a sponge? . The copper IUD works to stop sperm from reaching an egg and to stop.