Hello. Girls, I can't start losing weight. On the contrary, I started …

Hello. Girls, I can't start losing weight. On the contrary, I started gaining weight. Before pregnancy, I was thin (44-45 kg). At nine months pregnant, I already weighed 59 kg. I'm not breastfeeding so I eat what I want. Not that I'm eating, I started eating at night and in large quantities. I can't stop. My belly is like a pregnant woman ??. I don't know how to stop. Girls, can there be such medications that help reduce appetite?