Pregnancy loss, D&C and annoying MIL. Am I overreacting?

I had my D&C; done yesterday. I’ve been bleeding a lot, having unbearable cramps and pretty much bed rest all day. I was 8weeks along this was my first pregnancy. My in laws knew I was pregnant since week 4, when I found out. I am terribly hurt, I feel alone and hopeless, I cry all the time, everything is just so recent. Not to mention the physical pain. My in laws didn’t get excited about the pregnancy at all, and they explained after several weeks of knowing, the reason of their non excitement about having a grandchild is because they were afraid I’d miscarry. That I get 100%. They were right too, I did notice though my MIL was a bit negative the day we announced to them. BUT, but. My family doesn’t live here they’re all in my country of origin and my mom cries all the time because she was excited. She also cried cause she can’t be with me right now during this moment of pain. Anyway when my in laws learned about my MC they didn’t say a single word to me whatsoever they told my husband through texts that they were sorry and that they were praying for me. They live 10 min away from the hospital we were at from 12pm to 12am and they obviously did not show up at all. That’s not even the issue here they always been distant like that and I can live what that. The problem is my husband gets home from work today and tells me his mom is having a picnic this Sunday and wants the whole family to come. Uh, what is she celebrating? I mean, i told my husband in a nice way his mother is WELL aware I just had my first procedure done and if she gave a damn enough to ask my husband how I’ve been doing she’d know I’m bleeding feeling dizzy with some blood clots and terrible cramps. My womb hurts. The reason for the picnic basically is because a cousin of hers that my husband barely knows drove out here from another state and she wants the family to get together. It seems she either did not give a damn about the pregnancy at all or she already forgot I’m mourning my loss. I know I was only 8 weeks and it was almost NOTHING in there a blueberry to be exact but it was going to be my first child and it’s been devastating to me! And I know if I don’t go she will get upset saying I don’t want to part of this family like she always does. I just feel like she’s a total nonsense for inviting me through my husband. I told him if he wants to go thats perfectly fine it’s his family he needs comfort and support but I would rather stay home grieving not to mention the pain it hurts to walk. Now honestly do you think I am being dramatic here? Please tell me because in this past couple days I learned I miscarried my emotions are ALL OVER THE PLACE and I don’t know how to feel about things anymore it’s like I’m lost.