Birth control is how you prevent pregnancy. There are lots of different birth control options out there. We’re here to help you figure it all out. Birth Control Shot Up to 98% effective Last up to 1-3 Months Copper T IUD 99% effective Last up to 10 years Mirena IUD 99% effective Last up to 5 years Birth Control Pill 93% effective Take Daily Condom 87% effective Use every time Internal Condom 79% effective Use every time Withdrawal Pull Out Method 78% effective Use every time Sterilization Tubal Ligation 99% effective Lasts for life Vasectomy 99% effective Last for life Please note that it is advised, that all contraceptives are started on the last day of your of your menstrual cycle.