Lazy Husband

I need advice!!! When my LO was born my hubby was great. Always helping out with stuff around the house, changing nappies and helping bath baby. Over the past month he's become pretty much useless. Never changes nappies or pays much attention to Baby. He's been on holiday over Xmas and has spent 90% of it on his phone. I ask him to help, like do the dishes or get washing in and he acts like it's a major inconvenience to him. Luckily we have a cruisy baby otherwise I would be screwed. I've told him to stop spending so much time on his phone and help me out. But I shouldn't have to ask!!!! He should just take his own initiative and do it. I'm getting pretty fed up. What do I do???!!!!!