My little girl will be 3 months old this month and she will only have 4oz bottles every 3 hours. Sometimes only taking 2/2 and a half of it. She finished 3 4oz bottles in a row so I upped it to 5oz and every time I've done that she'll only take 3 and a half of it. She's a very happy content baby, I just am unsure if her onky have 4oz bottles every 3 hours is okay? sometimes she'll wait for 4 hours at a time🥴