Baby Formula & Spitup

Wendy • My husband is in his 40s and I am 38 yrs old and we are 6 mnths pregnant now, expecting our first!
Hi all! We are new parents and have a 3.5 wk old baby girl. Question: If after drinking all her formula, and she spits up some of it a few minutes later, do we go back and give her more to fill her belly before her next feeding or not? Seems like if we dont, she gets hungry well before her next feeding. Thoughts? Thank u!