Hi!
I know this is a little late to respond, but maybe it will help?
My stepdaughter(who I’ve known since she was 2 and has lived with my husband and I exclusively since she was 8) had a terrible time potty training. She actually only was completely potty trained after she came to live with my husband and I, at 8 years old!
She, too, is a girl much larger than her age, and she was extremely overweight when she was younger. She would hold her stools for two weeks at a time!!! Her mother basically didn’t have the will power to stick with any kind of regular routine/regimen. The school nurses were very involved and were desperate to get some kind of communication and consistency between home and school. She would get SO angry when I insisted that she sit on the potty for a BM when she was visiting my husband and I, she once stripped naked(but she went!!!) She was wearing pull ups at night(soaked in the morning) and an incontinence pad during the day9which she would wet)
So, when she suddenly came to live with us(another whole thread!!!)) I knew we had to do something quickly, as she was going probably to start menstruating soon(which she did, a few months before she turned 10)
The first thing , like many people have said already, is to have good communication with whatever early childhood/childcare setting he is in. Make sure everyone is one the same page. A major problem with my stepdaughter was that she was used to having a temper tantrum to get out of going. Make sure you’re the boss!!
My stepdaughter’s mother also let her eat whatever she wanted and as much of it as she wanted, all unhealthy food. I made sure she did not have any juice except for in the morning, or soda-I really thought there was a pattern of juice/soda and more accidents than usual. As for the BM issue we had, I incorporated lots of prunes, apples, raisins, whole wheat, salad, vegetables, flax seed(in cereals or the meal which you can add to anything…) etc… Her mother and pediatrician had her on a mineral oil/laxative regimen, which was HORRIBLE! She never maintained a consistent routine, so at times it would just leak out of the pull up she was in and she would just sit there) I wouldn’t recommend this at all. We wold give her a small amount of her favorite snack after she went BM, Goldfish crackers.
My husband works a third shift type of job, so he would wake her up when he left for work, around 1:00 am or so, and make her go to the bathroom and I would get her up first thing in the morning to go before she went in her pullup-she would just lie there and go!!! Like some others have said, when she had pull ups or pads on, she would just go in them and not care. Hopefully you won’t have such a hard time, as your son is younger and I’m sure you’ll be more on top of the whole potty training challenge!!!
I agree with whomever said 'bug the crap out of them", because that’s what I had to do, too!!! When my step daughter was 5, I would know when she had to have a BM because this look would come over her face and her whole body would stiffen up and she would ‘freeze’ whatever she was doing. I would make her go sit, but usually she was so constipated, nothing much would come out. But I stuck with it, and from May 2003 until October 2003, she was FULLY potty trained with only a few PP accidents here and there, and she still needed to be more carefull about wiping(even today) And like some others have said, in times of transition, she did have some regression, but nothing major. We still to this day (she is 12) have to make sure she tries right after school. She was pretty independent, but then when we moved/bought a house last year, she regressed with BM’s and once became so constipated she was ‘stuck’ in the bathroom, so to speak…
Lastly, we had major problems when she was younger, because she would NOT go if she was watching TV/movies…we had to make her go before a movie/TV and take a break so she could go half way through. She would have problems at school like that, not going because she didn’t want to miss recess/gym/music etc…whatever was more interesting. But she has been pretty good for the last year!
Hope some of this LONG response helps and GOOD LUCK!!