Trying for baby #2

After 6 years and no success I recently went to the fertility specialist. She prescribed Metformin starting at 500mg first week and eventually getting up to 1500mg. I have been fortunate so far today to have minimal digestive issues. It did give me a big headache within the first hour taking it but it subsided and I feel ok for now. Before I had my son 7 years ago, I was told I would never conceive. Surprise Christmas of 2008 ! So I have been trying with my husband since he was about a year old and nothing. I've done pregnitude etc. I only hope this works. Do any ladies have any success stories that can lift my spirits? Good luck and baby dust to you all!