I'm due to have my second baby in the next couple of weeks and up until now my DS(3yo) has been really brilliant. He's been excited about the baby, happy to talk about it, keen to help, etc. I foolishly thought everything was going brilliantly.
This weekend we did all the big furniture rearranging (bednest crib arrived, built the changing table etc) and I think it has spooked him: the last day or so his behaviour has totally changed. He's acting out on purpose, doing things deliberately that he knows aren't allowed and taking any chance he can to contradict me, refuse to follow instructions, or make a mess.
Help! How do I make sure he's feeling loved and secure while at the same time enforcing the rules and boundaries that apply in his normal life? I don't want to get cross with him, but ignoring the bad behaviour seems to escalate it. I also don't want to reward the bad behaviour... Any experienced parents out there?