my dear, you look perfectly and it is normal, any woman gains weight at pregnancy and all the same it is necessary to buy new things, you shouldn’t be upset, and should think only of the good. on the average you should gain 10 kgs. I gathered during the pregnancy of 16 kgs and after the delivery threw off at once 10, it is weight of the child etc.
I suspect the size you recovered, as jeans are still clasped. HEALTH to YOU AND YOUR KID