Doctor said I am overweight.

I am not very tall, around 5'1 and pre baby weight was 120. I am now 33 weeks pregnant and one of the OB doctors said I gained a little to much weight. I can't help it if my baby wants to eat every 20 mins or so! So now she made me feel all bad and fat and ugly! Anyone ever had this happen and know if I should lose the 5lb I gained? (Ya I am 5lb overweight.)