Talk to Gynecologist on Absent Period After Marriage

I hd menstyral cycle of 33 days averge but after marriage it gts too late tht doctrs prescribed me pills for withdrawal bleed why is dat happening tryin to concieve bt no luck n i hv ds chronic vaginal infectn thts nt goin away its been 2 months. Isthr any cnnctn btween misse dperiods n vaginal infection