He thinks there’s a baby in my belly

Anyone else’s kid constantly point to your belly and says there’s a baby in there?😂 My two year old started doing this out of no where and I don’t even know where he even heard this to say it because nobody he’s around talks about having babies. And no there is no baby in my belly, there’s not even a possibility of one being in there. I always tell him there’s no baby in there but he still goes on.😂