Metformin, irregular period, PCOS question!

Veronica • 26✨PCOS warrior✨💪🏻 mama to be 5/18/2024💙☺️

Hi there!

I was diagnosed with PCOS in November of 2020 and was put on 500mg of metformin for my first month and then was switch to 750mg metformin extended. Just seeing how soon it started regulating your periods and ovulation?! My last period was from November 20th-December 21st. And since then, nothing. I haven’t missed a day of taking metformin and am currently taking a supplement to help me conceive. Isn’t metformin supposed to regulate your period?? Why is it taking so long for me? Is this normal?