Ay sis, common yan after birth talaga, ang uterus natin needs time to settle back to normal, kaya irregular muna ang cycle especially kung breastfeeding ka pa or fresh pa lang yung postpartum mo, pero kung tapos na ng ilang buwan and mas lumalaki pa yung days or sobrang heavy, better check with your OB para sure lang na walang polyps or other issues causing the prolonged bleeding kasi mas mahabang period + spotting after is worth investigating talaga.