Any advice would be much appreciated 
21 month old DS has showed signs he's ready for a while and has had a few odd wee's on the potty.
More recently he's started being uncomfortable when he poos and wanting his nappy off.
So today we decided to potty train so he's naked from the waist down and we have the potty in the living room.
He had a big wee in the kitchen then another big one 15 minutes later.
Then we were cuddling on the settee and he wee'd everywhere.
Each time I have told him never mind and to wee on the potty next time.
Then while I was in the kitchen he ran in saying "poo poo" and dragged me to the living room to show me the small bit of wee on the carpet.
He is happy enough and hasn't been stressed so far but he doesn't want to just sit and watch TV on the potty.
Do we just keep on as we are and hope for the best or does anyone have some tips? 
Thank you!