MIL problems

I've been with my boyfriend for 5 years and we are having our second child together and his mother hasn't bothered to call to see how this pregnancy or I have been. we also moved 6hrs away just a couple months ago due to work. She doesn't even try to contact me to see how our 19 month old is doing , she has only once. she's not busy either and has plenty of time to contact her family and visit her friends. My boyfriend also has a kid from a previous relationship and I totally see how she favors him over my children. I'm not sure if it's cause he's 12 and my daughter is 19 months and im pregnant, but I don't think there's an excuse for it. When I do bring it up to my boyfriend about how we have no relationship he always replies with you never try. But how can I try when, when we have talked she's always belittled me or talked bad about me. Especially with his baby mama she absolutely loves and she's literally a nuttshell. she has done some horrible things but she justifies her issues. With me, she seems like I'm not worthy enough. I've come to the point of never trying, nor am I wanting to surround myself around her anymore. I don't want to try having a mutual relationship because every time I try, it doesn't work out and she starts to trash talk me. I feel bad because my boyfriend is a mamas boy but I don't think there's nothing on my part I can do at all. especially with this second pregnancy and no contact I don't even want her meeting my daughter since she doesn't care to even see how we are doing. it makes me so mad and hurt.