How do the pill and mini-pill provide protection against pregnancy?

The combined pill and the mini-pill mainly prevent pregnancy by stopping or suppressing ovulation, so the ovaries do not release an egg for sperm to fertilize. The combined pill contains estrogen and progestin, while the mini-pill contains progestin; progestin can also thicken cervical mucus, making it harder for sperm to reach an egg. The best answer is “They prevent the ovaries from releasing an egg.”

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