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Can Taking Sulfamethoxazole While On Birth Control Pills Delay Period?

Okay, I had unprotected on the 22-23, I'm on TriCyclen Lo birth control, I then got a UTI a day or two afterwards, I just now started Sulfamethoxazole, the 27th (today). The guy also pulled out. Will my period be late? What will it do to my birth control and could I be pregnant?

posted on Thu, 13 Mar 2014

Medically reviewed by Ask A Doctor - 24x7 Medical Review Team

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