Yes, most people who are on hormonal methods of birth control have unprotected sex (sex without a condom). Hormonal methods (including the shot) prevent pregnancy by suppressing ovulation (the monthly release of an egg). If a woman doesn’t ovulate, there is no egg for the sperm to meet. Unfortunately, no birth control method is 100% effective. However, the Depo-Provera shot is over 99% effective as long as you get your shots every 10-13 weeks.
Just remember that hormonal methods do not provide any protection against sexually transmitted infections. To reduce your risk of STIs, use condoms in addition to the shot.
21. March 2012
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