You probably know that the pill has hormones in it to keep you from getting pregnant. Most versions have a combination of estrogen and progesterone. Some have more estrogen in them than others. While fewer hormones sounds like a good thing -- and it mostly is -- you should know the drawbacks when you’re weighing your choices.
Out of 100 women who use the sponge, 9-11 will get pregnant in a typical year.
How Does It Work?
First, the woman moistens the sponge with water. Then she places it into her vagina. It must stay there for at least 6 hours, and come out after no more than 30 hours. There’s a loop on the sponge to make it easier to take out.
The device protects against pregnancy in three ways:
1. It releases a spermicide to kill sperm cells for 24 hours. You can have sex during that time without needing more spermicide.
2. It’s designed to trap and absorb semen before the sperm have a chance to enter the cervix, which connects the vagina to the uterus.
3. It acts as a barrier between the sperm and the cervix.
Where Can I Get the Sponge?
It's available at most pharmacies and clinics.
Does It Protect Against Sexually Transmitted Diseases?
No. To protect against STDs such as HIV, the male condom provides the best protection.