Oh Heather that's AWFUL! If the phone is Android and you have it synced to your Google account, you can get the last known location by going to Android Device Manager. Depending on the version of Android you're running, you can even make it ring (if the battery isn't dead) or Enable Lock and Erase so nobody can get your info.
Captain of the Pirate Ship the Vicious Cream Puff
If my post (or someone else's) was especially amusing, helpful, or informative, show a little love by clicking the 'thumbs' up' icon to give it a kudos or marking it the Accepted Solution.