S.M.
I also am a mother of 4 and had the same problem with my 3rd. I was told boys were harder. My girls were a breeze. Ethan was 4 before I got him potty trained. I used preschool as a tool to get him to go. He wants to go to school so bad, that finally did it. Now I have a 22 month old yet to get potty trained. Hopefully he will be easier. He does tell me sometimes after he has gone in his diaper. I found that rewards didn't work for Ethan. I didn't use punishment, but telling him he won't be able to get something worked better for us.