M.K.
Time to make the pull-ups go bye-bye. Put them where he cannot see them. You can use them at night time only. Pull-ups really confuse children...my 2 year old (3 in 1 month) has done the same thing in the past week. It doesn't matter if he wets his underwear...he probably does that because he knows it will get him a pull-up. Typically at this age they don't want to stop playing..or whatever they are doing to go potty. Something could also be troubling him and this is the only control he has over his body. Has there been any changes in his life or routine? Stand strong...he needs the consistency.