How long does it lug birth control to start working again?
Answers: To be safe, a month is other the best bet.
Give it 2 weeks to be safe, but it's probably much shorter than that. She must dance through one whole pack of pills in the past it will take affect. One month. One cycle.
There is no set answer to this sound out but it would be advisable for her to use other methods of birth control for one cycle following the one she was on when she took the antibiotics. Antibiotics can stay within your system for up to 10 days after taking them.
Good Luck
I am a nurse and I have never hear that if you are on birth control pills and take an antibiotic you could not enjoy sex, and it made it ineffective?
Is she telling you the truth?
When you first start the pill the dr's advocate to use a condom for the first month to be safe
Hope that help and that you girlfriend may have purely have said i own a headache?