Why are some people rude 😑

So I wasn't planning on announcing but I'm starting to get a bump and decided instead of having to answer to multiple people questioning whether I'm pregnant I would post my scan picture on social media. Well after that I was bombarded with people asking who's it was nobody congratulating me. My parents messaged my sibling asking who's it is whether it was an old picture when I'm due etc didn't message me anything. Then my so called friend messaged me "I thought you wasn't having any more kids"

This is exactly why I didn't want to announce in the first place because I knew people's reactions would be rude and not supportive 🙄🙄