Jessica laughed about the little surprise, “Apparently, you know, protection was just thrown out the window.”
While Jessica says that she and fiancé Eric Johnson are "happy,” they were "definitely extremely shocked" when they found out. Their 1-year-old daughter, Maxwell, "was our focus, and then I was puking and lying on the couch."
Simpson added, "This pregnancy is the complete opposite. Like, with Maxwell, I felt amazing. Like, I could do everything, eat everything. Do whatever I wanted. I had a lot of energy. This time around... I'm like exhausted. Eating Tums. That's my snack of choice."
Tune in to “Ellen” on Wednesday to watch the interview!