Feeding

Stef

I have a one week old and im feeding her formula. I am doing 2.5 oz every 3 hrs but i find her getting more more fussy to eat earlier. I cant feed her every 2.5 that ridic. Is it safe to increase to 3 oz? Im getting frustrated im either not giving enough or afraid she vomit it all up if i give her too much. Also im waking her for night feedings. Anyone else !??