Iam currently taking 500 mg metformin. I have always had a period each month even before I started metformin. I was diagnosed with pcos when I was 13. Now that I am 22 I have been trying to conceive for about 6 months now. I wanna know can I conceive with just taking metformin. I'll heard of a lot of successful stories with metformin. Every time I go to the doctor everything always comes back has Iam fine. My question is how can you tell if you ovulation?