DS has just turned four. Between being a non verbal toddler and now, he was pretty compliant and if I said not to do/do something, he'd follow my request. Very recently there's been a lot of defiance and literally not listening. As in if he asks to do something / I say not to/ he goes and does it.
I'm a bit taken aback because it's so not like him. We've always used a positive discipline approach - set boundaries with consequences but not punishments. I really need MN's advice because I have a 20 month old, I'm pregnant, and just losing my rag with him every five minutes - and now making threats to punish, which is not how i wanted to be.