Natural herbal remedies

I've been trying to get pregnant over a year and a half. Last year I was diagnosed with PCOS and I am now on glucophage xr tablets. I took birth control for a few months but am not taking it anymore and my periods were pretty regular. Now I have not had one since April. Does anyone know of alternative therapy or herbal remedies I could take to get my period so that I can ovulate? Looking for any  help I can get thank you!