Thank for your help and encouragement!
I forgot to include in my last question- I think I was to hasty in taking off his diapers during his nap because he only poops during nap time when his diaper is on or in the morning again in his diapers. Ive put diapers on him again after reading your reply but again he won't poo in his potty. He's done it twice since we've started potty learning. I'm not sure how to help him.