my ds is 2.5 years old and ive been potty training him 4 about 3 weeks now, if i put him on the toilet he will wee, but he wont ask to go, he asks my mil and his nursery teachers but not me. but my main concern is he wont poo on the loo. he just poo's his pants, his teachers say they roughly know the time he goes so they are constatley on him but when they arent he poo's, why is he doing this and should i just put him back in pull ups?