No one expected Jessica Simpson to get pregnant again just seven months after the birth of her first child, daughter Maxwell Drew Johnson ... well, except maybe her.
The 32-year-old singer turned fashion designer explained on Ellen today that "Apparently protection was just thrown out the window!"
Despite eschewing birth control, Simpson explained that it still caught her off guard: "We're happy ... But we were definitely extremely shocked."
It's also been hard on their little girl.
"Maxwell was our focus and then I was puking and lying on the couch," she said, adding that the second time around as been tougher physically.
"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."
The Weight Watchers spokeswoman says she makes healthy recipes a priority when it comes to eating, but sometimes Tums is all she can handle.
At least her fiance, Eric Johnson, has her back.
Her man approves of Simpson no matter what her size, she added. "I can gain as much weight and I will have a husband to be that loves me," she said.