thank you for your reply,i guess he was still teething because few days later he was better and now he is fine and he sleeps through the night again without any major problems
Yay!!
Well if the routine is working, don't rock the boat.
It does look like you're on the road to 2-1, though, since his PM nap is short. His total nap time does look a bit low for his age, so I'd just keep that in mind even if you don't do anything about it at the moment. Many people find that with the 2-1 a short AM nap will yield a longer PM nap. For instance, waking him after 45 min at the AM nap and then doing a slightly shorter A time and then he'll probably do a longer PM nap and about a 4h A time to bed.
Just something to think about as you go along!