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The birth control pill shuts off the brain's desire to send the signal to the ovary to make hormones. So, it is ethanol estradiol, a synthetic estrogen,
and a type of a synthetic progesterine or progesterone. These work, the brain thinks that you have estrogen and progesterone present. As we said, that's
the ludial phase. And so, your brain says we don't need an egg to grow.
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