I was told my son is measuring and the told me if he doesn't grow bigger by 32 weeks that I need to have him early. My daughter also measured about 2 weeks behind. However, with her they didn't tell me she might have to be born early. I am small. I am 5'2 and have never. weighed more than 103. My SO is 6'2 and has never weighed more than 165. I weighed 7 pounds when I was born and my SO weighed 5 pounds 10 ounces (he is the smaller twin). My daughter was born being 6pounds 10 ounces 21 inches. To be honest I am not worried.

My question is should I be?