Totally with you on this! I know it comes from a place of love, but gosh sometimes it's overwhelming.
We don't live in the UK anymore, and on a recent visit, MIL was very vocal about how "she's worried how little she will see the baby" and that "she wanted more children, and because she couldn't, that's why she's so obsessed with her grandchildren". Yesterday she was calling to check when she should book her flights to come visit once she's born (baby due at end of March), and we've tried to be super clear that we want at least a month before anyone from out of town comes to visit, but she of course would prefer to come earlier.
She's also fairly traditional - lots of opinions on BF, medications etc. I know she will perhaps disagree with some of the ways my partner and I will choose to parent (which may be different to his sister, who already has two kids) and I'm already scared of her reaction/judgement. I try to let it wash over me, but it's super hard and I feel under pressure before the baby has even arrived.
Don't even get me started on all the plans to have huge family holidays and next Christmas, which aren't really in line with what we would prefer as a family, so now we have to manage expectations, which is just no fun. Most importantly I don't want to be accused of being the one keeping my other half away from his family, but it's finding a balance between what everyone wants vs what they NEED.
Then on the flipside, my Dad is super open about the fact he's not excited to be a grandparent, but then also shared our news with a lot of family before we had a chance to, and seems to have no boundaries when it comes to knowing when it's appropriate to share photos/information with extend family and friends etc. I am hesitant to share photos and things with him, because I end up having no idea who they will be shared with - which I feel bad about, but honestly, I don't trust him and he gets so offended when I call him out on it.
They all have their different challenges right? I have no advice really, apart from to empathise.
It's so hard - I both want to have a village around, but also want to cocoon myself away to learn to be a mum on my own terms and with my own unfiltered instincts. I guess what I've tried to focus on is me, my husband and the baby all being on the same page, and being honest with him when I feel something is too much, or where I would like him to set a clear boundary. My mum sadly passed away, and I grew up with just one grandparent, so I want them to be a part of our lives and feel welcome to play whatever part they choose, but figuring out what that looks like right now is a challenge.