Jessica Simpson Says She Didn't Know She Could Get Pregnant While Breastfeeding: 'Wait, What?' As she makes her highly anticipated return to the music scene, Jessica Simpson is sharing anecdotes about some of the major changes in her private life that took place during her hiatus.

While Simpson thought breastfeeding acting as a form of birth control, the mom of three was pleasantly surprised when she got pregnant with baby No. 2 just four months after she and ex-husband Eric Johnson welcomed their first child.

Jessica Simpson is finally staging a comeback with her newest record “Nashville Canyon, Pt 1.” But the singer and former reality television star revealed during a recent appearance on Today With Jenna & Friends why she chose to step away from the spotlight in the first place.