I really am not sure what this could be, but i bled for 3 months straight after i had my daughter. Then after that stopped i haven't had one since, but this attributed to breastfeeding. So sorry i couldn't help, but i just didnt want you to think that you were being ignored :) Good luck!!
By any chance do you breast feed? Breast feeding could change your menstrual dramatically, time varying from woman to woman. Ive heard some women dont get their period until they completely stop BF while others get theirs right away.