Is Plan-B Advisable A Week After Discontinuing NuvaRing?

Posted on Tue, 2 Jun 2015

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

Tue, 2 Jun 2015 Answered on

Thu, 31 Dec 2015 Last reviewed on

Question : I finished my last antibiotic Thursday and my nuvaring came out Saturday as scheduled. I had unprotected sex last night. Should I use Plan B as a back up to insure I don't get pregnant? I'm not sure if the antibiotics would've mess up the levels. Im suppose to start my period this week. Thank you!

Answered by Dr. Richa Agarwal (17 minutes later)

Brief Answer:
No there is no need of plan-b.

Detailed Answer:
Hello dear,

Thanks for trusting us about your health care.
I can understand your concern here.
I have gone through your history and in my opinion that there is no need of plan-b because this is one week break period of nuvaring after using it for 3 weeks and there is no chance of pregnancy.
Only two three antibiotics ( like rifampicin and tetracycline) can affect hormonal levels, rest of the antibiotics will not affect the hormonal levels.
So there is no need of plan- b.
Hope it is useful, feel free to discuss more questions.
Good luck.
Regards

Above answer was peer-reviewed by : Dr. Chakravarthy Mazumdar