I didnt loose my baby weight from my first pregnancy. i am now pregnant again & worried about the risk of preeclampsia & gestational diabetes due to being overweight. i am 54 & weight around 169. should i worry?

Pre-eclampsia is usually more frequent with first pregnancies, and gestational diabetes is a risk, but usually well controlled with frequent monitoring of glucose levels and treatment with insulin if necessary. Ask your OB physician about a nutritionist consultation, as lowering carbohydrate consumption will decrease likelihood of either condition adversely affecting pregnancy.