Charlie Sheen`s ex went to rehab twice while pregnant with actor`s twins

Washington: Two of Brooke Mueller`s twenty rehab stints occurred while she was married to Charlie Sheen and pregnant with couple`s twin kids Bob and Max, according to reports.

A source told Radar Online that during her pregnancy, Mueller went to rehab twice, as she was using Crystal Meth.

The source asserted that her two rehab stints comprised less than 30 days.

Mueller recently checked into the Betty Ford Clinic for a 30-day treatment stint, marking the 20th time she`s entered a treatment facility to seek help for substance abuse.