Every woman's cycle is different so no one could tell you when you will ovulate. (Look into temping and using opk's as these will help you determine when in your own cycle you will ovulate) But yes it is possible to get pregnant on your 1st cycle off BC, but its not always that easy so do bear in mind it may take a while to get your bfp! (Though fingers crossed for you!)
This has been my 1st cycle off BC and I'm now on cd33, and no AF yet - but means zilch with my pre pill weird irregular cycles! I'm waiting till Aug 1st to test.
Why dont you hop over to the TTC boards now your off BC 😄