Patient : Hello.im a 17 year old female and this is my second month on birth control.im on the pills 21 days long and than i have a 7 day break and during those 7 days i always get my period(usually on the 4th day) but during my 7 day break i was on antiobiotics and had sex before and after my period.on the 8th day i had the last antibiotic and my first birth control pill(the 2nd box).should i be worried about being pregnant? thank you
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