Iron Supplements

Hello Mommies, FTM here, normal po ba na color black ang dumi while taking iron supplements in 2nd trimester? Pang 2nd day ko na kasi na ganon. Should I be worried? Or its just normal? Would like to know lang din po if may naka-experience po ng same concern sakin. #AskingAsAMom #Needadvice #firsttimemom