Get dh to get up with the baby, and have a lie in ? That's where I'd start.
Then, depends what you like - wrap up and go for a lovely walk if you have somewhere nice near you, to walk. Maybe go out for lunch? Is it too late to invite someone round for a birthday tea, or friends for a takeaway and a bottle of wine ?
It's my birthday tomorrow first one as a mum I have an 7 month old baby and the DH has taken the day off any ideas of what to do? I'm stuck obviously something that involves my baby we also have a dog and it's supposed to be nice weather tomorrow any ideas? Thank you so much x