Lindsay Lohan has reportedly sworn under penalty of perjury that she suffered a miscarriage. If it comes out that she has lied in the documents, she could end up in jail.

Lindsay had made the declaration in new court documents in a $5 million lawsuit over her clothing line 6126, reports tmz.com.

She was given a reprieve from responding to the lawsuit while she was in rehab last year, but even after getting out, she failed to respond, so she lost the case.

Now, it seems Lindsay wants to undo the damage and she's using her miscarriage as an excuse.

In the new court docs, she writes, "I have been overwhelmed since leaving rehab and dealing with my sobriety and a miscarriage."

Speculation is rife that Lindsay made up the miscarriage story to garner buzz for her Oprah Winfrey show - or maybe just to get sympathy votes, but these are legal documents, which means she's under oath.