OMGosh!!! I am soooo sorry you have to deal with this
It is so not fair to those of us that have to deal with toxic MIL's. I can definitely sympathize with you.
When DH told his mom about our first pregnancy, her words to him were "oh no, oh no, oh no, I knew something was wrong." Then she also told us she didn't want us to have a boy and said to me that she wants me to have a girl so she can "have a daughter all her own." That did not sit well with me. Like excuse me woman, she won't be your daughter, she's MINE!!!! It really hurt DH's feelings when she reacted like that because we had tried for over a year and a half to get pregnant with her and had two bleeding episodes (one of which we were told I was miscarrying). This baby meant the world to him and she couldn't even be happy for him for one second. She also was positive we had had an ultrasound and knew it was a boy and that we had told my family but not told them. For starters I was UP'ing (which she had a MAJOR issue with, of course) and couldn't possibly have had an ultrasound since I wasn't seeing a doctor. She got put in her place when this "boy" we were having came out with a vagina!!!!
This pregnancy, when DH told her about it, she told him she knew something was up and that she knew I was pregnant!! Ugh, whatever, lady. Then a week later she told him I wasn't pregnant and that those pregnancy tests lie and that I couldn't possibly know I was pregnant since I hadn't seen a doctor yet. Give me a break you hag!!!!! Now she is mad because I had surgery when I was pregnant with this baby and we KNEW we were pregnant. Truth is, is they did a blood test the day before I had surgery and it came back negative. Exactly a week later, I took a htp and it came back positive, so, no, we did NOT know we were pregnant, but do you think she'll believe us?
I am just so sorry that some of us have to deal with all this carp!!!!!!!
Just wanted to mention that us too, are old enough to have children. 27 and 27 and we own our own house....and vehicle and we both have jobs.