While contradictory views on having children was one of the reasons that led to John Cena and Nikki Bella's splitsville, the actor-wrestler, who wanted to be a mother, has now changed her mind.

The World Wrestling Entertainment (WWE) star, 34, called off her engagement to Cena earlier this year over their differing views about parenting. Bella now says hanging out with her 15-month-old niece Birdie has been like "birth control" for her, reports pagesix.com.