Dad had the initial same reaction.

Thinking it was from Jen (my second oldest sister) and Jens ultrasound. When I told him it was mine, he asked who the dad was and then changed the subject. He pretty much ignored the topic all lunch and then when he said bye he told me "Congrats" in what sounded like his fake happy voice.

So I'm not sure what he thinks.. But at least it's in the open..

All that's left is Jen and then everyone in close family knows.