skipping the pill and antibiotics

Hi,
I have been on the pill (Yasmin) for a few years now. Next week I am going on holidays so I do not want my period. So I skipped the placebo pills and began a new packed of pills immediately as I normally would when skipping a period. However, as of yesterday I began taking amoxycillin antibiotics for tonsillitis. I know antibiotics reduce the protection effects of the pill but will it also reduce the controlled skipping effects? That is, will I end up getting my period in a few days as it would have come normally. If so, is there any way to stop it? Thanks

[Elaine Brown, MD]

Hi!
Because the antibiotic you are taking is Amoxicillin, you will probably be OK on both counts.  Some other types of antibiotics (such as rifampin) can be more troublesome.  To be on the safe side, a back up method of birth control is usually recommended though.
Good luck!
Dr B