I breastfeed my baby for six months. I stop breastfeading 4 months ago and I haven't started my period. My belly is growing and I had gained 20 lbs probably in the last 7 months. I tested myself to find out if I'm pregnant but there are always negative. I'm not taking birth control and my baby is my first and c-section. My gynecologist prescribed medroxyprogesterone for seven days without a check up she just asked me if I was taking birth control and if I was pregnant. My mom told me that she had to do a pat smear after having the baby but she didn't she just check my wound. Please let me know if this is normal or why is my belly growing.