Potty Training Regression

Rikki_5

So we have had what I thought was a totally potty trained boy for the past year.  Suddenly, he's starting going both #1 and #2 in his pants.  There have been no changes to our routine or lifestyle and I'm just getting really frustrated.  The advice on the internet is mixed.  I don't want to put him back in pull-ups but I'm tired of cleaning up 2-3 times a day.  My guess is he doesn't want to stop playing to take the time to go potty. Anyone have any advice?  he'll be 3 in October.  We've been doing potty training since 18 months and he has been wearing undies for a year with little to no accidents.  The regression has been going on for the past couple weeks. thanks!!