Girls, I don't even know what to think. Weight is growing like yeast.…

Girls, I don't even know what to think. Weight is growing like yeast. Got pregnant at a big weight. Was 84-85, then dropped down to 81. In the first trimester, weight didn't really grow much. But after week 9 it seemed like some kind of glitch started, because I was moving not very actively and ate junk food. But then I ate properly, but now I almost gain 1kg every week ? I wouldn't say that I eat a lot. I eat twice a week. After 7 days I don't eat anything. I avoid bread, sugar is limited. I try to walk more, at least 6 thousand steps. There