He's just so damned naive sometimes, she wants to scream. It's so embarrassing for a grown woman to have to explain 'the birds and the bees' to her equally grown husband. He found the thought of a woman pushing a child out of her nether regions absolutely horrifying. She finds it terrifying too, but she'll get over it soon enough.
She's worried about him. She's set to have a child in four months. She hopes that he doesn't pass out.