Advice for pcos?

I’ve been on Metformin since the start of April. I had a period 3 weeks after starting it and was so happy but I’m now cycle day 61 and nothing. My periods before metformin were also non existent I could go 3-4 months between periods. My doc has put me up to 850mg metformin twice a day , but I feel SO disheartened. I can’t get pregnant if I’m not ovulating! 😭 I was getting obsessed with OPK’s so I stopped and me and OH decided to just have regular sex and see what happens, but is there any other advice anyone else can give me??