What are the signs of having a big baby?

Signs Indicating a Larger Baby

A fundal height that is larger than expected may suggest fetal macrosomia. Additionally, if there is an excess of amniotic fluid, known as polyhydramnios, this could also indicate that your baby is heavier than average. Amniotic fluid plays a crucial role by surrounding and protecting the baby during pregnancy. Thus, having too much of it might serve as a sign of a bigger baby.