DONT worry! all children are different. i have three girls ages 7,4 abd 2. my first child was daytime potty trained 3 month after her 2nd birthday but wore pull ups at night for a year and a half after that. she still had accidents sometimes up until the age of 5. the culprit....she is a heavy sleeper. my second child was potty trained day and night 4 months after her second birthday and did great until she was 3 then starting wetting the bed. i spent a lot of time in the pediactrics office and we did things like cut out foods with red dye in them (this can cause bladder spasms), cut out drinking after dinner, blah blah blah. i even took her to a specialist to have an ultrasound on her bladder and kidneys. everything was fine. she is in pullups at night right now as we speek and is doing better. its just something they grow out of. my two year old has no interest in potty training yet so i will wait until she is. bottom line, dont worry. this too shall pass.