Creepy as hell!!!

So today I'm at dunkin donuts getting my usual and there's a mother with her young son in front of me. Kid may have been about 3 or 4 yrs old. The mother was talking to another lady who had an infant daughter and she told her that she's happy that she has a son. The little boy said "but you wanted me to be a girl". His mother looked confused and said what?! He responded and said when he was in her stomach he heard her say she hopes its a girl. WTF?!!! I got my dunkin and left. Wow I guess babies can hear us when they are in our stomachs.