Am I big for 25+1

Samantha
I am 25+1 and people keep saying I'm big for how far along I am. I am 5'7 and currently weigh 252lbs (18st) I gained 14lb so far. This is my 4th pregnancy. I did lose 98lbs (7st) before I got pregnant. It's just annoying when people say 'Omg, your huge for only 25+1' 
I am growing a baby, what do they expect? I will add my last 3 boys where big at birth
First son 8lb 1oz (month early)
Second son 10lb 9oz (6days late)
Third son 11lb 2oz (6days early) no diabetes in those pregnancies. Unfortunately been told I have gestational diabetes this pregnancy 😐 the one pregnancy I decide to eat better with too so I am very worried and not sure what to expect. Sorry for going on lol