Super weird 🤔

I'm 12 weeks pregnant & last year I miscarried at 13 weeks, after announcing it to pretty much everyone. This time I just want to make sure everything is okay before I say anything to my family because my miscarriage really affected them last time. So my baby's father has a 3 year old who doesn't know a thing about the pregnancy, we would never tell him until we officially knew everything would be okay. When I first found out I was pregnant he said "you having a baby?" And I was just like whattttt who told you that and changed the subject lol. Recently out of the blue saying to my baby's father "you're having a baby" and he was like did you tell him that?! Why does he keep saying that, but I haven't said a word to him! Do kids really just know these things???Â