Thank you for all the welcomes!
We were at the in-laws last night and DS wouldn't go to sleep there, so had a late night. He was really grumpy this afternoon/evening so we're definitely going to stick to his routine as much as possible. He fell asleep in the carrier when I took him and the dogs for a walk but didn't sleep for long so again hasn't napped much today.
I'm hoping to go back to work 3 days in January. I've only just started to think about nurseries! Now I'm panicking that they'll all be full! He'll only need to go one day a week though. I think it's hard to go back to work no matter how old your baby is, I'm just worried I'm going to miss out on things!