I had my first 5 days late. I didn't feel anything until the day I gave birth. The baby never dropped, I never felt any pressure, my back didn't hurt, my water didn't break. I had a little bloody show around 9am, had mild labor pains 10 minutes apart around noon, full blown real labor pains around 5pm (5 mins apart) and delivered her at 1am.
With my second I had mild BH contractions that started around 4pm (they were actually labor pains but I had no idea since they didn't hurt that bad). Around 8pm we decided to go to the hospital just to be safe (his due date was 2.5 weeks away). Got to the room at 9:20pm and was 4cm. At 9:45pm he was born. Yes, it was THAT quick...no time for an epidural. With him he didn't drop, never had any pelvic pressure, no backache, and he came out still IN his bag of waters. I had bloody show about 10 minutes before he was born.
I would just tell you to be ready at any moment. Good luck and I know you will do just fine :)
Mother of 2 and 1 on the way