First snake. Need Advice.

[Snakenoob]

Hey all. I've been a member of the forums for several years now and finally have a snake of my own! I got a corn snake from a local pet shop. It's doing well and is really docile. I've only had it for a few days, but fed it about an hour ago to keep on the schedule the pet shop had it on. They said they were feeding it 2 to 3 pinkies at feeding time, but it only took one. I offered it a 2nd but it only went to the warm side and curled up under the bedding. Should I be concerned that it only wanted one pinkie? Should I wait and try again in a little bit? Should I offer it another one tomorrow, or wait another week before feeding again? Thanks for any help!