i just recently got in what i think is my 3rd trimester. every app says different! i’m 29w 2d

and no matter how much i eat i never seem to get “full” i just stop and later i want to eat again. why is that? i don’t want to over do it and be unhealthy and gain an excess amount of weight. but i also wanna get full and stop eating 100 times a day😂 is it because the baby is getting most of my food intake or is that not a thing?? or am i just a fat ass?😂 Lol