Jessica Simpson is embracing her second pregnancy, and she's happy to chat all about it with Jay Leno on The Tonight Show.

The 32-year-old songstress tells the talk show host, "We've had two different wedding dates, but he keeps knocking me up."

Simpson and fiance Eric Johnson, 33, have been engaged for more than two years.

The sexy blonde then gets even more candid about getting pregnant. Jess adds:

    "We're doing it very backwards, I know... I'll just keep my legs crossed, I guess, this time. Apparently it was a part of God's plan for my life. I was extremely shocked. Because I was going through a lot of hormonal changes, trying to get back to the old, vibrant Jessica. You know, it was kind of like a one-night stand. And it happened, all over again!"

Whoa .. TMI! Before announcing she was pregnant with a second child, Maxwell's mom had lost more than 50 pounds with Weight Watchers.