I've been talking a lot about many forms of birth control including hormonal ones like the Pill, the Patch, and Depo-Provera, and about barrier methods like the male and female condom. A diaphragm is another form of barrier method, which prevents sperm from getting to your precious eggs.
It is a shallow, bowl-shaped piece of rubber with a flexible rim that fits over your vagina and covers the cervix so sperm can't reach your uterus.
Your vaginal muscles keep it in place.
There are unfortunately many disadvantages so click here to read more