Telling my sister I’m pregnant. 🤷🏻‍♀️🤰🏼

So, I just found out I’m pregnant. I’m pretty early on but I wanted to share the news with my sister. I sent her the picture of my pregnancy tests yesterday and she didn’t believe me (thought she couldn’t see the line) & it was light yesterday so I didn’t fault her. Today it was CLEARLY positive and all she could say to me is “you’re not pregnant”, “there’s only one line”, “ it has to be as dark as the other” telling her I’m a medical assistant I run these tests and I know I’m pregnant she says “I’m not going to argue with you you’re definitely not pregnant and you would know if you are”...wow really. I told her if she’s going to be a bitch she doesn’t get to be involved and I blocked her but like really?! I’m so hurt! & I went in for my bloodwork and confirmation testing and YES, I am pregnant. Below is the test from this morning. Why is she so hurtful?! I thought she would be excited..