I'll give you lots of my history! I went through precocious puberty.. In kindergarden I had boobies... first grade, at almost 7 I got my period. Bam. It was spot on until I was about 16 1/2. My sister has PCOS [deep voice, facial hair, obese> and I was always on the heavy side, although I played sports all through school and was active. I even weighed much more than I looked. I had a lot of muscle, a lot of testerone, but I was still pretty feminine looking. My periods stopped at 17 for no reason, after about 7 months I went to the doctor and she prescribed me metformin and Ocella birth control to get my periods started back up. The metformin made me poop which was good because I spent a lot of time constipated. If you take it, I recommend eating lots of fiber to avoid diarrhea. It helped me start losing weight. I got my period the first month of the birth control so I stopped taking it. The next month, I conceived. I took metformin until 12 weeks into my pregnancy which I think helped with keeping my insulin regular, which in turn helped balance my already crazy hormones. My nipples hurt SOOOOOOOOOO bad and my doctor said it was from all the extra estrogen, which my body was probably never used to because I had PCOS. It's a success story! My oldest sister who doesn't take her metformin hasn't had any children, but everytime she decides to take her meds she always ends up losing around 30 pounds. I have no idea why she stops, but hey it worked for me! I'm now 20 weeks pregnant with a baby girl and everything seems healthy and fine.