I had three teeth by the time I was 4 months old. My daughter is just over 3 months old, and has one below the surface on the bottom.
@damiensmommy2015, my daughter is two months old and is drooling a lot more. She has been having her hands in her mouth when she's not hungry.
They could start that early.. I remember my baby drooled so much at that age and always had her hands in her mouth...she was just discovering them because she's now 7 months and still no teeth lol.