Metformin
"Hi everyone, I usually got my period once in 3 months and when the Dr diagnosed me of PCOS in 2013, he prescribed metformin for me but it gave  me serious gastrointestinal issues so I stopped it barely after 2 weeks. After I got married in 2015, we started TTC and along the line bumped into this page. I summoned courage and got metformin again by October 2016, this time I didn't mind the side effects but took it judiciously at 1500mg/day. My period became a tad regular and viola......we got a BFP in Feb 2017!!! In the end please don't forget to keep praying .
Goodluck guys."