Std and late period

I found out about 2 weeks ago i had chlamydia I only had it for like 2 weeks before finding out...I took the meds the day I found out and doctor said in 3 Mos to test again... my boyfriend also got treated the same day..my period was suppose to start on Sunday the 31st of July and today is Aug 4th and no period yet I took a few pregnant test and we're all negative!! Can having chlamydia make ur periods late or make u not ovulate??? I was suppose to ovulate right before and during time frame I found out... anyone have this before??? Also for anyone who has had it did u test negative in the 3 Mos when u went back??? Kinda worried!!!