She's calling it a mistake and didn't really mean to let it out on Jimmy Kimmel Live that she's having a boy with her fiance Eric Johnson.

Jessica SImpson was a guest on Jimmy Kimmel's show last night and she was discussing her second pregnancy with him revealing that she's more sick this time around and ended up blurting out the following, "The crazy thing is, I never knew a wiener could actually make me nauseous."

Quickly realizing what she had said early on in the interview she said, "Well I guess I just told the world that I'm having a boy!" Jimmy didn't realize what she said until after she made that comment and he followed it up with, "I didn't even know what was happening....I thought maybe you were having a girl with a penis."

This will be Jessica and Eric's second child and is expected to arrive early summer. Last May, Jessica gave birth to her first daughter, Maxwell.