My son turns 3 in May and he's ready to potty train!!! We've had 4 successful pee trips so far this week. I know it doesn't seem like much, but I'm so proud of him! We just sit on the potty as often as we can. Now to work on going #2 as well, any tips? He knows when he has to go because he will insist on a pull-up so he can go in it instead of the potty. Do I just refuse and make him sit on the potty? I don't want him to hold it in if he's not ready to poop on the toilet yet.