Hello, doctors say my belly is big at 41 cm and the baby is large-size…

Hello, doctors say my belly is big at 41 cm and the baby is large-sized. I was born 2.500 and my husband 2.700 somewhere. Can our child be large-sized? I'm very worried. I am small in height, but gained 20+- Could this be more fat in my belly ? and it seems like a big one.