I'm sorry, but I'm going to say it.
I was checked two and a half weeks ago... I was 2 cm, 50% effaced and the baby was engaged... and I'm still here. I'm now, as of last Wednesday, at 4 cm, 75% effaced and the baby is at +1. Oh, and my bag of waters is apparently bulging.
This doesn't mean that you aren't going to have your baby any day now though... I really think you can only know from what you know about your body. The midwife was SURE that I was going to go that week when she checked me 2 1/2 weeks ago... so maybe I just have a super cervix that likes to be half way dilated before I go into labor.
Good luck, and keep your chin up, no matter what, you're baby is going to be born.

(This is what I have to keep telling myself.)
