We told you that’s knock up week at lalate news! Jamie Lynn Spears, Lily Allen, and just before the week is done … now ms. sextape herself, Jessica Sierra?!

American Idol alum, Jessica Sierra, star of VH1’s Celebrity Rehab, and jail occupant, is  knocked up too!

Unreal!

Sierra is currently facing two misdemeanor charges and two felony counts.

To be continued!

Of course, she is also facing a January 30, 2008 release of her sex tape.