Exclusive Breastfeeding Question

Cristal🌹💋🥀Reneé • Wife & Mom to twins Kenzie & Christian. One angel on Earth, the other in Heaven

If you exclusively BF your child and did so for at least a year, did your baby want to eat more often than they should? How did you know they were getting enough and that your supply was going to stay for a long period? I bf, pumped, and supplemented formula some times with my first, but I really want to try just bf this time and I don’t want to be worried that I need to be pumping and end up messing up my supply