Why do people always judge pregnant women?😐

I am 21 weeks pregnant and i work in a care home which is mostly female staff, they all seem to want a say in on my pregnancy, ' oh you dont eat enough' ' you are eating for two ' ' why did you find out gender ' 'you should do this with baby' ' you shouldnt do this' I honestly feel like screaming in all there faces like a raging lunatic, telling them all that this is my pregnancy, this is my baby, he is perfectly healthy and you don't have the right to tell me what to do!!!!!😐