DS has just turned three and had never showed the signs that he's ready for potty training. Not sure if he knows when he needs to go for a wee. He's the only one not potty trained in his class at nursery so I've decided to go for it and start today. So far since I've put him in pants this morning he's cried and cried. I don't know how long to perservere as i don't want to put him off but I know it needs to be done. Any advice would be appreciated!