Family In Law driving me crazy

Okay so this may be a vent or do you guys think I'm over exaggerating....

So first of all. My twin pregnancy is the ONLY one in either sides of the family. So I feel super special like blessed. And now all of a sudden my husbands niece is claiming shes pregnant and with twins too. She had an ultrasound at 6 weeks and they only saw 1 baby but 2 sacs. 1 was empty. But she said it will come up later. Her words to me were "see anyone in the family can have twins. So it's just not that special but congrats cant wait for our twins to be best friends" at my 6 week ultrasound both babies were obviously there and if she is having twins you know cool but she doesn't have to be like that about it. She just made me feel not that special about it. Mind you she felt the need to say all this at my sons birthday party.

Then so like we just got a van. To fit all our 4 kids in as soon as the twins are born. Since the twins will be in car seats of course and my son is a baby and is in a car seat still and my oldest is still in a booster. And my husbands sister (also at my sons bday party) says "cool must have been your income tax because you couldn't have afforded that. Idk how you're going to do it with the twins" first off it doesn't matter if it was with our income tax or not. Second. It wasnt our income tax I run 2 businesses OF MY OWN and I never show off how much I earn or I never buy flashy stuff or anything. Most of my money is all getting saved up for a house we want to build. So that made me mad. And I finally showed them all how much I make and they all were shocked. I never wanted to let them see because I don't want them asking us for stuff. But I was mad.

THEN one of my business is a makeup business. And at the table all the girls were talking about buying makeup from this other girl who runs a makeup business too. That they dont even like her products but they wanna support her. I've always been nice to them. Help them with anything. even financially in times when my own family wasnt doing good either. yet they dont support me.

So I'm just mad. and I cant hide the hate. I've never been a girl to hide how I feel. I saw one of those girls today she said hi I rolled my eyes and kept walking. I dont want to reveal the gender of my babies to them anymore. Or their names. Nothing.

My husband doesn't disagree with me. He is mad too at how they've been acting. But he doesn't feel as mad as I do. Am I overreacting.

EDIT had to add this in there too. This was all yesterday. And today my husband got calls from his sister, the niece that's pregnant, and another family that was there being UGH lol and they were asking for money. I'm not greedy I always share if I can. But after them being like THAT hell no they're not getting anything from us. And he agrees too. He defends me 😊 I love him.