Let's see: these two have been married for a while, they've barely seen each other naked, but I think this waiting for the right time is going too far. They may look like grade school kids, but they know, basically, what to do. I could see it if they were high school kids acting all shy, or as they are adults acting shy in public, but they're married. He knows how to use the internet and should be able to google birth control. Same with her as her leap through puberty was more visible to her.