Hungry baby


So my little one slept through the night since she was born up until she hit the 3 month mark , now she will be 4 months thanksgiving day amd wakes up screaming crazy about 2-3 times super hungry starting around 5ish in the morning til she wakes up around 9ish ... she drinks 6oz. Of formula for each feeding so Idk what I should change or do .. any one else have this problem???