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===About the Contraceptive Pill===
: Some '''contraceptive pills''' contain [[oestrogen]] and [[progesterone]] which [[inhibit]] the production of [[Follicle Stimulating Hormone|follicle stimulating hormone]] so that no [[ovum|ova]] will mature.
: Some '''contraceptive pills''' contain only [[progesterone]] which has fewer [[Side Effect|side effects]] than the [[mixture]] of [[oestrogen]] and [[progesterone]].