Good day girls! Who is losing weight, can you say how many calories y…

Good day girls! Who is losing weight, can you say how many calories you consume per day to lose weight? I manage about 1200kcal somewhere. I read that this is very little for breastfeeding mom, it became scary. The second day already my breasts are soft, they don't fill up much. Usually they were always full, and could pump. Now nothing comes out ;(