My puppy is about four and a half months old now. She's been teething, and I've picked up several of her smaller teeth over the last couple of weeks. Tonight, she lost one of her fangs. I'm sure there is a proper name for them, but I'm sure you know what I mean. Is she supposed to lose those and grow adult versions of them? I don't remember my other dog ever losing those before and it kind of freaked me out. There was some blood and she doesn't want me to look at her gums right now but she's otherwise acting fine.