Psychic Gran

OK, here's a wierd one...

My mum was telling me that she met a friend in the supermarket on Saturday, that she hadn't seen for ages. They were discussing grandkids etc. and my mum said:
"Oh, I've got two Grandsons, and Warren's wife is due in about a week. She's going to have a little girl..."

Then she put her hand to her mouth, and looked at my dad, shocked.

"Oh, what a freudian slip!" she said. "I have no idea why I said that. We don't know what it is yet!"

So, spooky fortune-telling, Granny's intuition, or sub-concious hope? We'll find out soon enough I guess.