Bloating/showing early

Cydnee

So I found out I was pregnant at 11 and 6 last Friday. Now that I’m 12 and 6, my tummy has increased overnight in size. It’s become tighter in my lower abdominals and protruding much rounder. This is my rainbow baby, second child. I can’t tell if I’m just bloating or I’m showing early. Has this happened to anyone else?