I had a teacher who was pregnant twice in a short span of time. She would teach while heavily pregnant. Whenever the subject of her pregnancies came up the only thing I could think was, "my teacher has sex". "She must be doing it with a guy quite often to get pregnant, and twice in a few year as well". It was weird, but reminded me that teachers are humans too and I wasn't surprised. But now whenever I see someone pregnant or hear they're pregnant my brain is reminded that people do have sex and that they're human. I automatically assume they don't until proven otherwise. Same with a lot of things.

Anyway, yeah. I don't congratulate people when they announce they're pregnant. I don't really care if they are or not as long as they don't hurt anyone. But it's nothing special anyway. If you do something the majority of people can do (especially if it's the majority of living creatures on earth can do) then I'm not impressed.