Need help on feedings

Sara

My 2 month old eats between 4 and 5 pm and no matter hard we try to keep her awake she falls asleep and wont wake up for another feeding. If she does wake up we can only get her to eat an oz before she falls asleep again and nothing will wake her up ( I even went as far as using a loud horn which woke her up for a second but she fell right back asleep) any tricks to getting one more feed in before bed? I dont want to put her to bed so early so she'll sleep later in the night