T.
Boys take longer. My son would go if I put him on (pee) but would not poop at all when he was 2. He kept telling me he would do it when he was 3. A couple of weks after his 3rd bday, his preschool was on fall break. I threw away the pull ups completely and he was trained within the week.
My dgt. was completely trained by 2 years 9 months (3.5 months sooner). Good luck!