One thing I've learned about accidents is to never say your not hurt.
I say: "After I see my doctor, I'll let you know".
I suggest you see a doc asap to get checked out. IME, lots of problems come up after the fact, especially with your back/neck.
Be sure you contact your insurance company to report the accident if you haven't already. They can take care of your car and get the money from the at fault party. You'll have to pay your deductible but at least they are a little bit interested in taking care of you.
Also get a copy of the police report.
IME, YMMV and all that.
Here's more on what to do: http://www.cars.com/go/advice/Story....in-an-accident