Random question

It’s been on my mind the last few days, but my mother in law doesn’t know we are trying for baby #2 and 3 days ago we were over there and she randomly just asks me if I’m pregnant... I’m 1-3 days away from my period, but it got me thinking has anyone ever asked you if you were pregnant before you actually knew??? I’m not saying she does know I’m just wondering who this has happened too. I love hearing stories.