Girls, one more question. We're on mixed feeding. But mostly on the br…

Girls, one more question. We're on mixed feeding. But mostly on the breast. The daughter can't poop herself yet. I help with suction tubes. Yesterday she struggled for a long time and finally pooped herself. I didn't have any luck at all. I thought everything would be fine now. But no... again couldn't. Had to help again. Has anyone had this experience? When will she be able to do it by herself? I'm worried