Eye rolls, head shakes or fake smiles!

Announced to everyone that we are expecting #4 (5 with my MC), today on Thanksgiving. I was expecting everyone to be semi happy at least, but that's not the response I got. We put a sign on our 15 month old with the announcement and my mother in law says "oh, I thought it was a joke!" She's a major dingbat (like literally) so I wasn't surprised, but the comment alone was insensitive. To cut this short, everyone else either shook their head, rolled their eyes or gave us a most ungenuine "congrats" I ever heard. I thought after everyone was so "sorry" after our MC, they would be at least a little happy. I don't understand. I would get it if they were financially helping us out sometimes or watching our kids a lot which none of this is the case. We both have great jobs, and haven't been on even a "date night" for months. I love staying home with my kids and I'd rather do that any day. So with that said, it doesn't make sense. Maybe they think it's too many kids but isint that our problem? I don't know, but this has me majorly bummed and I sit here with all of them surrounding me about to go ape shit and tell these people off like "hey, if you're not excited you can kiss our ass and you don't ever have to see my baby or baby's for that matter. (pregnancy hormones RAGING).