Help! Nursery?!

[Mumafwag]

Hi, I am super new to all of this, as is my oh. I am currently 29 weeks and we haven't started on the nursery yet.
The main problem is that the planned room for the nursery is my oh's office/man cave. Now he is of the opinion that the nursery doesn't need to be completed or even started until after the baby comes, as it will be in our room in the next to me, for the first few months.
However, I'm a planner and have anxiety, and truly wish for it to be all completed before Christmas. In my head, I need a space for the baby and all its belongings, as well as having it done when there is no child to worry about inhaling dust from plastering, paint fumes or just the general mess.
The other issue is, we don't have any space for my oh's office stuff to live, all the suggestions I've out forward don't work. He would prefer we change the guest room into a larger office for himself, yet he keeps forgetting that all of our family are from n.i (we live in England) and would need an actual room when visiting. We are also hoping to put our house up for sale in 2021/2022, and move closer to his work.
I just don't know what to do. Do we need to have a nursery straight away, if baby will be in our room for maybe 6/12? Should we just get it over and done with, or maybe leave it? It's causing me major stress (I know it's such a small thing to stress about) and would appreciate any thoughts on the matter

Is there really that much work which needs doing before it can become a nursery? Why does it need plastering etc. Can you fit a desk in the guest room with a pull out bed to make everyone happy?

DD2 didn’t sleep in her own room until she was 14 months, and only just got furniture (apart from a cotbed) today and she’s 4 (years) in February. Prior to that we were living all over the place while our house was entirely renovated and it all went wrong so it took forever. She asked me a fortnight ago when she could have a wardrobe (living out of hand me down chests of drawers before now). She had plenty of lovely stuff but a nursery was entirely unnecessary and it’s great to share her new furniture with her now when she appreciates it. I have made dd1’s lovingly hand made curtains into a den, she doesn’t even recognise the fabric; it had been in her room for the first 3 years of her life 🤷‍♀️

Is there room to fit a cot and chest of drawers in the guest bedroom?

And then when you have guests come, the baby can sleep in with you?

It seems unfair to disrupt your DH when the baby won’t be in there for months, and you are potentially moving soonish anyway.

Either way, the guest bedroom sounds like it needs to be multi-purpose now. Whether that is putting a desk in there or the stuff for the baby.

Our “nursery” consists of a chair and chest of drawers and will stay like that until the baby is ready to move in next year. I’m 31 weeks.

Babies don't need a nursery! Mine slept with me until (um hangs head in shame) until school age. (They had a room, they stored things there but wouldn't sleep alone.

A less extreme option is to put it off until 4-5 months old, when would you put your baby in bed alone? a year is common

Sadly, he did up the office himself the second we first moved in 8 years ago and he damaged the walls a good bit, as was his first ever DIY job. It's all hidden with what he has put up, but for the nursery, the shelves would need to be removed as they are the whole way around the room at a high height and arent exactly safe. Hence the plastering.
I would also like to note that he is away the majority of the time, and the office isnt work related, but play related (including a DJ system).
There isn't actually much room in the guest room, which is why he refused to move just one of his desks in. But I will check measurements for maybe a changing table.
This is our first child and it is an absolute miracle that we fell pregnant due to cancer a few years ago, so I do wish I could supply it with a nursery. Especially when technically we have the space. But yes, im following guidelines regarding keeping baby in same room with us for the first while, though I may have to look into when to have them sleeping alone from 4-5months due to having to return to work.

I also just know that, if I turn round and agree that we leave the nursery until later on, it won't get done, but I also feel bad that I'm making him give up his 'freedom'. Yet at the same time I'm annoyed that he gets to keep his own space but I and the baby have to adapt around him. Which is probably why I'm being stubborn and selfish about it. 🙈 I'm also worried I'm doing things wrong and in the wrong order. Sorry about the rant, I'm just a mess