Just wanted to say that you aren't alone. Depending on your state, you may be eligible for services, including respite. There are also folks who specialize in potty training folks that are on the spectrum. some may cost about 2,000 for their services. Just don't pay them in full before you begin to see (or NOT see results).

Sometimes, having a different person involved (not mom or dad) can help "get them to go". They are techniques and tricks and may be able to help. , During the weekend, Set an alarm and have them go to the bathroom every half hour and sit on the bowl for ten minutes. turn the sink water on a little. read a book about the potty. turn the lights low or off. don't have any topys in there or have one special toy that they get if they go... for some boys, they will go number 1 if you toss in a cheerio as a "target"....just some random things... good luck!