If a contraceptive method is 90 percent effective, some people believe it fails 10 percent of the time, that they’re fated to get pregnant one out every 10 times they have sex using it. Actually, this ...
Birth control effectiveness varies by method, with implants, IUDs, and sterilization preventing pregnancy over 99% of the time. Pills, patches, and condoms are also reliable but depend more on correct ...
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