Ronda Rousey is pregnant. The 37-year-old star – who already has a two-year-old daughter with her husband Travis Browne – has announced at San Diego Comic-Con that she’s expecting her second child. Ronda was actually in San Diego to promote her debut graphic novel, ‘Expect the Unexpected’, and the former mixed martial artist also decided to share her pregnancy news with the world. During a conversation with panel host Dave Bautista, she said of her latest project: “It’s like ‘Knocked Up’ meets ‘John Wick’, and also a romantic comedy. “The main character is a super nerd, assassin for hire, who’…