ledkr yikes have you even got room for all those people? Not that that's the main point of course, but you hardly need a houseful of people (especially some you hardly know!) sleeping on floors etc. when you've got a newborn and are feeling somewhat 'post-operative'. I would be putting my foot down! Time to get shouty and wiggles idea of suggesting you might be driven to abduct your own the baby to get some peace is a good one.
I sort of have the opposite problem with PIL, well not FIL, he is just completely uninterested which is fine. MIL is very excited and I know will dote on her first DGC (and has already signed up for unpaid childcare bless her), but is also doing a very martyr-ish act at the moment about not coming around or having much to do with baby as she doesn't want to get in our way etc. I know she is trying to say she will come as much as we want her to and no more, but in my ever so slightly irritable state, I am finding the martyrdom irritating (Yes I ABU!). Thing is, MIL is lovely, but we're not at all alike, and because of that we're not really properly 'close', so it's the not the kind of relationship where I can just say 'don't be such a drama queen' as I would to my own Mum!
But anyway, I should be grateful really, it's A LOT easier than having to put up with PILs and family intruding and staying over so early on. I'm feeling a little Victor Meldrewish that they actually think that's OK TBH!
Maybe you could emphasise how much you don't need houseguests by drawing up a list of chores for each of them (as after all, surely they have come to help you)!
D