I have endometriosis and for the last two years since I gave birth to my baby girl my period is really really heavy. it lasts 6-7 days and I have serious bleeding. my doc gives me medicine to stop it.i don't use any protection.i want another baby but I am not in the mood of ttc for I don't need the anxiety. ....this period lasted 4days with much much much less blood.the two of the four days were spotting. what's wrong with it? is it normal? is there any possibility of being pregnant and have a light period? or is it changing again?