I'm 4.5 months postpartum right now.

Pre-pregnancy weight - 56kg
Weight before delivery - 71kg

Total gain - 15kg

Right after delivery - 68kg
2 months postpartum - 65kg
3 months postpartum - 64kg
4 months postpartum - 61kg
4.5 months postpartum - 60kg

I notice that my weight is only coming down slowly. Maybe because I'm eating like a cow. My food intake is 3x my pregnancy food intake. Fully breastfeeding now.