Suggest Treatment For 2 Period Cycles In A Month

i need to ask a question...i m suffering from pcos ...i m getting married on 2nd august...my doctor suggested me to go for a 3 month course of diane 35...i did it..after 3 month course i got periods she said now its time to leave all medicines use only metformin daily ....i m doing this i took my last pill of diane 35 on 10july.... on day 5th of my periods....but after skipping medicines again got periods today on 18july.... means i got 2 period cycles in a month....what should i do now? plz suggest me some good advice i m very upset....i have spotting today...reply me must plz