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A member asked:
I had sex on saturday during the last week of my quartette pack. i was on antibiotics bactrim (sulfamethoxazole and trimethoprim) and took plan b that monday. could i be pregnant?
3 doctors weighed in across 2 answers
Unlikely: Plan B is most effective if taken within 72 hours, which it sounds like you did. It will not affect an existing pregnancy. If you do not get menses at the expected time, be sure to take a test. Good luck!
Answered 4/3/2016
3.8k views
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Get tested: The best way to know is to get tested. Home pregnancy kits can tell you a couple weeks after implantation, whereas a hCG blood test can tell you much sooner. See your doctor for the blood test.
Answered 8/1/2014
3.8k views
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