Is your baby measuring bid on the u/s or is it your fundal height that is measuring big. Cause my fundal height is measuring big but my baby is measuring the right weeks on u/s.
Its normal for measurements to be a couple weeks off the later you get into your pregnancy. Measurements are only accurate for dating a pregnancy the first 13 weeks of pregnancy.
Baby could be big but fundal height doesnt take everything into.account. It doesnt tell you are far you along your baby is.