teething?!?

C
I think my boy is teething already! He'll be 12 weeks tomorrow and the drool faucet turned on last week. He's also preferring to chew on his paci instead of suck on it. I let him chew on my knuckle and then took it out of his mouth to dry it off and he went after it like a rabid animal. And my happy baby has been sooo cranky!! Any other early teethers out there??