Still grieving my miscarriage, SIL now pregnant

I finally got pregnant last October and ended up miscarrying in December at 9 weeks +4. I'm still really struggling with it and today my brother, who just got married in June, announced that his wife is pregnant, due exactly 1 month after I would have been. I really want to be excited for them, but honestly I just feel resentful.

I see people all around me getting pregnant either accidentally or just without really having to try and I have to try so hard to even get pregnant and then even when I did I lost it. I need some baby dust over here.