Pepsi lost

he's two front teeth 2day and i almost lost my mind,noone told me this happens.he was running around playing and he sit down in front of me and he licked he's little mouth and i noticed the teeth weren't there.he contiues to play with his toys,the breeder i got him from tell me that's normal,i was on my way to the hosptial with my baby.has this happened to anyone else?