Projected percentile/weight - how do you find out?


I keep seeing posts of others saying that they went to a checkup and their baby was measuring a certain weight or percentile, or even info about their levels of amniotic fluid. How are you finding this out? Do most of you get regular ultrasounds? My doctor just measures the baby‘s heartbeat and my belly every time 🤷🏻‍♀️ I have no specific info about the projected size of my baby, and I wish I did!