Sponges

Sponges can be placed into the vagina to help keep sperm out of the baby making area. If used right, sponges can be 90% effective. They can be found only at select drug stores. This is another method that can take some practice to get used to.

Super important detail: You need to wet the sponge before inserting it. This does not protect against sexy germs (STIs).

Check out more info at:

http://teenhealthsource.com/birthcontrol/sponge-details/