How do different contraceptive methods prevent pregnancy?

How do contraceptives work? - NWHunter · 4:21 · Video: TED-Ed · Watch at the source

In short: This video explores the fundamental mechanics of contraception, examining how various methods prevent pregnancy by blocking sperm, disabling them before they reach the uterus, or suppressing ovulation.

Contraception operates through three primary biological strategies. Some methods act as physical barriers to block sperm, while others work by disabling sperm before they can reach the uterus. Alternatively, hormonal approaches function by suppressing ovulation entirely. This overview examines the mechanics behind these different strategies to understand how each one achieves its goal.

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