My son's feeds are different..

Kayley • 24 years old, I have a little boy who’s 4 and I’m TTC my second baby!! 👶🏻
My son is 1 week old and he wakes for a feed every 3-4 hours, but every feed it different, sometimes he'll finisht the full 120ml and sometimes only 60ml at feeds. Does your baby's do this too?😕