38w1d baby weighs 7.4

Erica
Well according to the ultrasound tech. Idk if I should be scared cause that seems kind of big to me. All my babies were small, well my first was 4 pounds and the 2nd and 3rd were 6 pounds, my last baby was the biggest he was born at 7.4 and I am currently 38 weeks 1 day and they said the baby is 7.4!! I'm scared I'm gonna end up delivering a 8-9 pound baby. Are the techs always right? I mean how accurate are they? Is having an 8 pound baby that bad?