I am seven months post partum after my fourth child. I had a normal delivery and breastfed until almost two months ago. My son would sleep through the night since 4 months. I am wondering why I have yet to start my period. I have had random vaginal discharges which are blood tinged, and have been feeling bloated and crampy off and on for about three weeks. I don't remember it ever taking this long before to resume menstruation. Is this normal?