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is defined as various ways used to prevent pregnancy from occurring. has been a concern for humans for thousands of years. The first contraception devices were mechanical barriers in the vagina that prevented the male sperm from fertilizing the female egg. Other ....

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.... can be used without medical supervision, and must be used with each act of intercourse. These have no side affects but must be used exactly according to instructions. Spermicides can be up to 94% effective if used correctly. Contraceptive pills or oral contraception are a common form of contraception for women. They contain two hormones, oestrogen and progestogen, which prevent an egg from being released by a woman's ovary each month. There are several different types of pill so if one does not suit you then another one might. It can reduce pre-menstrual syndrome (PMS) and period pain. There is evidence that the pill offers some protection a ....