I'm praying so hard for you! I went to 41.4 with this guy, and measured 43 weeks for a couple of weeks...
I LOVE that you are a 4! No, it doesn't mean labor will start anytime, BUT it does mean that you have done the latent phase already! That's the longest part! I was a 4 for a bit over a week, and when my water broke it opened me to a 5, and within a few hours (only a little over an hour of harder contractions) and less than 15 minutes pushing I had my baby!
As hard as it was to wait, I wouldn't change it for a minute, because I know my body got ready and I had a faster labor with this big boy..it was better than having to actively contract for a long time to GET to a 4!
Anyway, I love ya, and I know how hard the wait is...know you are loved, and trust your body! Perfect timing!