for people who post bumps under 12 weeks...

I've been seeing a lot of "3 weeks," 6 weeks, 2 weeks "bumps." I'm not trying to seem rude, I'm just wondering what they are expecting people to respond with? There isn't really anything visible that early.
Again, I wasn't trying to seem rude, so y'all can relax. I was hoping for responses from people who do it/have done it. It was legit curiosity so you defensive presumptive ladies can have several seats 😂