Patient : I have been dating my boyfriend for the past two years and we have NEVER had sex before. I started taking Tri-Sprintec the last week of June 2011 into the first week of July 2011. I have been taking the pill everyday at the same time since I started. I am beginning to feel like I am ready to have sex but am very scared of becoming pregnant because I am only 18. How long should I wait before the pill becomes totally effective in preventing pregnancy? I have been told 7 days, 1 month, 2 months and even 9 months...what is the real answer? Thank you in advance
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