Didn’t know were else to post this

I’m Air Force and my sister is Army, I’m in America and she’s stationed overseas. We talk every single day, I’ve cried to her about trying to get pregnant and how difficult it has been and she’s cried to me about the same. We’ve both been trying for a year, well this past Valentine’s Day she post on social media that she’s two months pregnant. I haven’t heard from her since the day before Valentine’s Day. My feelings are hurt, I’m hurt because she didn’t tell me, I thought we were closer than that, I’m also hurt that I haven’t heard from her. I reached out and congratulated her and nothing, no response. Trying to get pregnant has been so so very hard and she was my one person that truly understands, and now she has disappeared on me. I know I don’t have a right to be upset with her and I’m not. But am I wrong for feeling hurt ?