This new mommy needs help.

So I have a question for all you moms out there. Drew will be 4 months old tomorrow and I had thought about starting rice cereal this week since I'll be home the rest of the week from school. Is this too young? We were going to stick with rice cereal for about 3-4 weeks and then introduce baby food around the end of January. He was doing really well sleeping through the night about 3 weeks ago, and ten all of a sudden, the last 3 weeks he's been getting up 1-2 times a night. We don't have to feed him or anything, we are able to just walk in and put the paci back in his mouth and usually he falls back asleep. Sometimes we have to go in a 2nd time about 5 minutes later, but then he falls asleep. I thought it might have been teething, but I've tried orajel before bedtime and also tylenol and he still wakes up. So maybe it's not being quite full enough? Anyway, let me know what you think about starting the cereal this week!! This new mommy needs some answers!