MIL not happy about pregnancy..

Purple bee
We told her over the weekend. She acted all happy saying "I'm getting another grandbaby!!" Then when she got me alone she said "I'm actually not excited about this at all" then tells me that I can't foster my nephew whose in Cps because I will stress her son out even more. Excuse me?! My husband and I have two kids together already and it was planned to take my nephew waaaaay before getting pregnant. Then she says we have to get a three bedroom house cause my house is too small for three kids. I HAVE a three bedroom house!! A spacious one at that!!! And it's VERY homey and well decorated. My kids have EVERYTHING they could want and need and financially we are good. I'm just so irritated because she's being so fake. We are happy about this baby..