3 month started to wake up at 4 am

Marianne
My daughter was sleeping thought the night (5 to 9 hours)since she was 1 month. A week before turning 3 months she started to wake at 4 am i giver her Pasifier and she falls asleep but asks for it until its feeding time. Should i try feeding her and see if shes hungry. I also dreamfeed between 11-1 before i go to sleep. Anyone else dealing with the same thing.