Is Maxwell going to have a little brother or sister? 

That's the question Ellen DeGeneres had for Jessica Simpson on today's episode of her talk show.

 And though she only hinted at the answer in the clip above, she was very open about getting pregnant for a second time in two years.

"Apparently protection was just thrown out the window," the singer and "Fashion Star" judge joked about getting knocked up ... again.

"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," she added. "This time around…I’m like exhausted. Eating Tums. That’s my snack of choice."

Also completely different this go-around: Her diet.

"The first pregnancy I like let loose and I kind of ate everything that I wanted to eat and I just really enjoyed it," added Jessica. "This time around I think because I was doing Weight Watchers and I felt super healthy. I’m not really craving as much and I know how hard it is to get off so I’m trying to make healthier, wiser decisions."

Check out the video above to see the big hint about Baby #2's sex -- and see more when the full interview with Jessica airs today on "The Ellen DeGeneres Show."

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