pp weight loss

y'all. I'm so anxious to lose weight. i gained 33 pounds with my second pregnancy. i lost 18 of those right after birth. I haven't lost any since. I'm almost 5 wks pp. I'm a healthy eater. I eat about 1700 calories, no gluten, no dairy. i drink a gallon of water every day. I move about 12,000 steps a day. plus I'm breastfeeding. what gives???