In the house:

Me: “Zack, I have to go to Walgreens, do you want to come?”
Him: “Sure.  What do you have to get?”
Me: “Oh, I have to pick up a prescription. (Whispering) And a pregnancy test.”
Him: “And a what?”
Me: “And a pregnancy test.”
Him: Stunned Silence. “Really?”
Me: “Yeah. I’m pretty late.”
Him: “Dear God, If you love us, please, let Sarah be barren.”

In the car on the way:

Him: “What’s with all the baby clothes in the trunk?”
Me: “MP was giving them away, so I grabbed them to give to Sarah1 and the girls.”
Him: “Oooooh.”
Me: “I guess it does look weird, me taking you to Walgreens for a pregnancy test with a trunk full of baby clothes.  I bet you were all, ‘Woah, she’s thinking ahead!’”
Him: “Hardly.  Babies don’t even need clothes until they’re 2 years old. Before that you can just dress them in paper sacks.  It’s not like they’re going to remember it anyway.  And if they do, when they turn 2 and you start dressing them in real clothes, they’ll be all, ‘I LOVE YOU, YOU’RE THE BEST FOR GIVING ME THESE SNAZZY CLOTHES!’”

Back home again:

Him: “How long ’til we know if we have to start saving up paper sacks?”

(for the record: not pregnant.)