Uy, GDM lang ba or PCOS din? Kasi maraming moms sa group ko na nag-metformin throughout pregnancy for gestational diabetes, and honestly ang common side effects they experienced were nausea, especially first trimester, and some had loose stools, pero yung mga ito usually nag-settle after a few weeks pag na-adjust na ang body. Kailangan mo talaga i-discuss yung specific concerns mo with your OB kasi depende sa dosage at individual factors, pero karamihan ng moms I know naging okay lang naman ang babies nila, important lang talaga ang regular monitoring and glucose checks mo. When did you start taking it?