TAKING THE PILL FOR ACNE WITH IRREGULAR PERIOD

Patient: I’ve been to the doctor about my acne and he’s given me the pill and some creams. My last period was about 2 weeks ago. Do I start taking it now or wait until after my next period? My periods are also irregular so i’m not sure what to do about the 7 day gap of not taking them, if my period will actually come in those 7 days? any advice will be great. I am not using the pill for contraception as i’m not sexually active at the moment and won’t be for a while.

Doctor: