@BrinaEds
I am just feeling enraged for you. In previous responses I have said leave the house for at least a few days.......
Now I am thinking, at full term with my first baby - because let's face it you don't know how your labour will progress when you haven't been through it before - that is the last thing I would want to do.
I think you need to tell you 'D'H how fucking stupid he is being and how utterly unsupportive he is being.
Can any of your friends and family help you / back you up?
Can you have a similar conversation with your in laws?
Could you send a scathing message on the family whatsapp group?
Can you show them this thread and show them how over 3000 people think they are being unreasonable?
Look, this is a worthy hill to die on - you need to make a stand and you need to do this ASAP. The longer this goes on, the harder it will be for them to get another venue.
I remember my first married Christmas, my in laws wanted us 'to fit in' a visit to see my brother in law. I just said a flat 'No' - it would have added 2 extra long journeys, in a week where we were already driving over 1000 miles - they were pissed off. The point is, that was my line in the sand, I just wasn't going to pander to their bullshit. Also it meant, ongoing, they knew they had to include me in the decision making process.
Your inlaws cannot presume they can just take over your home without your consultation and agreement. Your DH needs to fight your corner. It's your 1st baby FFS. God, he needs to sort out his priorities.
Feel free to copy and paste this into your family Whatsapp group if that helps.