Metformin help

Hi ladies. I started taking metformin in November after my fertility doctor prescribed them. Every month Iv been having period on 25th even before the tablets. Well I’ve waited today and nothing... does it change your period? Trying not to test as don’t want to get my hopes up.. cervix is high, tightly closed and egg white cm....

Been having pain in boob

Itchy boobs

Bloating

Sicky on and off

Tired

Migraines

Belly feeling sorta crampy..

Pulling behind bellybutton

Ultrasound the lady picked up a “ball of gas”?