Troubled starlet Lindsay Lohan made a heartbreaking confession on the finale of her OWN docu-series. During two weeks of filming she did not want to be involved because she suffered a miscarriage and was in physical and emotional pain.

"No one knows this," she said ... "I had a miscarriage for those two weeks that I took off."

She continued, "It's a very long story, but that's why on the show when it says she doesn't want to come down, I couldn't move, I was sick. Mentally, that messes with you."

TMZ points out Lohan did NOT reveal the father of her baby.

This is the most recent revelation of the former Disney cutie, who has also confirmed her notorious "sex list" on "Watch What Happens Live."

"That was actually my fifth step in AA at [the] Betty Ford [Clinic]," explained Lohan. "And someone, when I was moving during the OWN show, must've taken a photo of it. So that's a really personal thing and it's real unfortunate." 

The list was first revealed by In Touch and listed 36 partners. Front runners included Zac Efron, James Franco, and the late Heath Ledger.

It's been reported that the "Mean Girls" actress was difficult during filming of her show, and has not been asked back for a second season due to low ratings. Oprah Winfrey has notified executives but not yet LiLo herself, according to Big Hollywood.

When reflecting back, Lohan expresses that "Watching this series, I just know how I felt at that moment and I can relate to that girl, which sounds kind of crazy."

She then added, "I'm like, 'oh my god, this is really sad. Who's helping her?' No one knows what's going on in my head at every second because I'm constantly thinking. My mind does not shut off."

What do you think of this revelation? Are you sad for LiLo?