Diaphragm
How it works:
A diaphragm is a flexible plastic cup that you fill with spermicide and place in your vagina and over your cervix before having sex. This prevents you from getting pregnant by keeping the sperm from getting to the egg. For most people, the diaphragm is about 88% effective at preventing pregnancy.
Perks:
Hormone free
Reusable
Can stop using it on your own
Drawbacks:
Not as effective as other birth control methods
Must use every time you have sex
Doesn’t protect against sexually transmitted infections (STIs)