Please read. Could I be over reacting?

This is my first pregnancy im 3 months. Me and my husband only have my family. My brothers wife let out the news on her being pregnant also. She is one month pregnant with baby #2. Thing is I feel hurt. As she announced everybody was happy. My father even told them he felt like crying. They all had a big smile. When i announced I was pregnant nobody said anything. My dad didn't even gave me a smile he didn't even seem happy for me . And all my mother did was just smile. At this being my first pregnancy I wanted it to be the best experience but now that my sister in law is pregnant there putting more attention on her once again. I just feel like this whole expirence is ruined for me. I feel like she got to have her moment on her first pregnancy and now she's taking my moment on my first pregnancy. I'm just so sad