They're really starting to pop out quite a bit. Thankfully he's been really good (except that one day but I think it was a tummy thing, not his teeth) and I'd have never known he was teething except for when he bites me.
And for those that are curious about teeth and breastfeeding, so far he's been okay. He's tentatively bitten down a few times but I usually catch him in time to make him stop. Right now he's doing a lot of pulling away to see what else is going on in the room (Marty, your post last week about this made me laugh..Carter does the exact thing), and tends to scrape my nipple with his sharp little teeth. That hurts.