Open Question: How would you describe my body type? (pictures)?

I used to be skinny(size3) and I have gained weight cause I got hypothyroidism and its difficult to maintain or lose weight. i wear a size 9 now and i'm a lil insecure cause my mom makes a big deal about it. Sorry my ribs and collar bones arent sticking out anymore? I try to be confident but id like an honest opinion of my shape, size, and whether or not i should lose weight? Picture 1: in a pink bikini on the left Picture 2: the blonde picture 3: my fave honest answers please.