"I had made the decision to not have any drugs, no epidural, nothing," the 28-year-old supermodel said on the Australian TV show Sunday Night. "To each their own. I'm crazy for doing that!"
"I didn't realize [Flynn] was going to be such a big baby," she added.
Though Kerr rates her life as "10 out of 10 happy," the brunette beauty said she and Bloom aren't ready to give Flynn a sibling just yet.
"I always thought I would have three [kids]. Right now I'm just trying to enjoy Flynn," Kerr said. "They say the first three years are the most important, so I want to make sure that he gets the attention and the nurturing and love that he really needs. So we'll see what happens."