Hi, I have been 4 years on Yaz birth control pill. During my period (white place pills) I took Orelox antibtiotics, then a week after Rocephin (ceftriaxone) 1 shotplus azithromycin pills (1000mg in one day) as pescribed by doctor. For how long should I use a backup method (condom) after finishing rocephin and azithromycin which was a week ago? I had my period last week after taking orelox so I'm not pregnant.