My adviser shares space with another faculty member and I am friends with that faculty member's grad student.
Tuesday around noon I was suddenly filled with the certainty that my friend's adviser was pregnant, and I told him that while we were waiting for our yoga class to start Tuesday evening.
Today in lab meeting, his adviser announced that she is about 3 months pregnant.
I don't actually think I'm psychic but more likely, I subconsciously picked up on some subtle cues. But I do think it's a sign I should go to medical school.