Possible: The Bactrim (sulfamethoxazole and trimethoprim) doesn't increase the risk of pregnancy after taking Plan B but Plan B is only 95% effective if taken within 24 hours after unprotected intercourse so there is still a risk of pregnancy. Now is a good time to consider starting a more reliable method of contraception along with the use of condoms to decrease the risk of STDs. Hope this helps. Be safe.
Answered 5/30/2015
2.8k views
3 doctors weighed in across 2 answers
A doctor has provided 1 answer
A doctor has provided 1 answer
90,000 U.S. doctors in 147 specialties are here to answer your questions or offer you advice, prescriptions, and more.
Ask your question