Is today the big day?

So last night the contractions started at much more regular intervals. I was able to sleep for the majority of the night, but C couldn't sleep until after 4:00 because of the contractions. Now they are ranging from 3 to 9 minutes in duration. How do you know when to go to the hospital? How do you know when they are strong enough or close enough? I mean, at 4 minutes, but irregular, is it often enough? How strong should they be? Do they have to be strong enough that you can't talk?

They talk about these things in advance, but I'm not sure the pat answers were really all that helpful.

Is the baby coming today? I dunno. But I'll keep you posted.