It may be a good thing, although in the past it seems like almost everyone's EDD stays the same for several weeks, and then a big wave comes and everyone's EDD changes significantly. My EDD was Dec 19-31 for 5-6 weeks before it went all the way back to Mar/Apr, and then fairly quickly adjusted to the current Jan/Feb. You and I ordered identical cars 2 weeks apart, and we're both in the mid-west. It's somewhat encouraging that our EDDs line up nearly exactly (my range is just 1 day behind your range, so I assume our cars will be "born" at the same time). They may be wrong, but at least they are consistent!