3 year old son says I have TWO babies in my tummy !

Keshia. • Mommy to 5 & expecting #6 in August ❤️ #lastbaby
I am 5w4days & feel fine at the moment but today my son is telling me I have not one but TWO babies in my tummy, they are boy babies. One for him & one for mommy(me) to take care off. Has any other mommies had their kids tell me there was more than baby in there & be right ? 😳😳 Do kids really have a sense for this stuff or it is imagination running wild ?! We don't go to our first OB until next Monday & I'm beyond curious now 😂