Rhythm method: don’t have sex during the fertile period, only during the safe period
Chemical Birth control:
Progesterone-only pill: pill which affects the uterus and makes implantation difficult
Spermicide: a chemical applied as a gel, cream or foam which kills sperm. It is very unreliable on its own but makes barrier methods of contraception more effective.
What are the 4 mechanical methods of birth control?
condom, diaphragm, femidom, and IUD
Condom: thin rubber covering over penis, it protects from impregnation and STDs, used by man
Diaphragm: used by woman, prevent sperm entering uterus, reliable, must stay in place for 6 hours after sex, needs a correct size
Femidom: closed end, has a ring which gets pushed through cervix and open end’s ring lies against the labia
IUD: plastic-coated copper coil, can be left inside for months or even years, has a string which is used to remove it out of the vagina, reliable, it irritates uterus wall preventing implantation