Gosh, I wish I hadn’t read this thread this morning! Having had a complicated MC earlier this year, and now struggling with difficult feelings around SIL’s pregnancy, some of these replies make me feel pretty shit.
I appreciate what @SunRainStorm wrote above. A MC isn’t (just) an event that happened in the past, and which you get further away from as time moves on. It creates a gaping hole where your baby should be. That’s sad today. And every time DB and SIL see or engage with you and your baby OP, it’s renewing the loss for them. The sadness happens again, because your baby is here and growing and theirs isn’t. Can you understand why they might choose to limit how much they put themselves through that? Saying “in their shoes I would do XYZ” shows you haven’t really got any idea about what they’re going through, because until you experience a MC you just don’t know how you’ll respond. I get it - I judged others for what I saw as moping around before I had one. But please listen to those writing from the other side giving you some insight into what might be SIL’s experience.
I appreciate after a difficult birth and in the postpartum period you want, need and deserve support. Absolutely. Find people who can give it to you. DB and SIL have shown that’s not them right now.
(And YES to those posters asking where the expectations of DB are in all this, and why it’s all on SIL as the wicked witch - though frankly DB’s primary loyalty is to his DW, not DSis, so if he’s honouring her by staying quiet so be it.)
And for goodness sake OP, stop involving your parents!! It’s you who’s creating a rift in the family by doing that!
Congratulations on your baby - really, knowing how precious that gift is, I celebrate with you. I hope you get the support you need.