Chelsea Cheyenne Becker, 25, was arrested and charged with murder after she delivered a stillborn baby with high levels of meth in its system

A 25-year-old California woman has been charged with murder after delivering a stillborn baby that was found to have toxic levels of methamphetamine in its system.

Chelsea Cheyenne Becker gave birth on September 10 but her child was already dead.

Doctors believe that she may have been using meth while she was pregnant which ended up killing the baby.

The death was ruled a homicide after an autopsy by the Kings County Coroner's Office found methamphetamine in the baby's system.

Police arrested Becker on Tuesday night on a felony charge of first-degree murder and booked into the Kings County Jail in Hanford Wednesday with bail set at $5 million. She pleaded not guilty to the charges according to CNN.

'The levels of methamphetamine in this baby's system were such high levels, even for an adult, so we believe that she was using almost the entire time that she was pregnant,' Detective Sgt. Justin Vallin of the Hanford Police Department told KGPE.

Cops say Becker admitted to using meth during her pregnancy right up until just a few days before giving birth.

Becker was arrested Tuesday night and held on $5 million bail. Police say she admitted to using meth during her pregnancy right up until just a few days before giving birth

Three of Becker's previous children were also born with meth in their systems and she has lost custody of several children because of problems with substance abuse.

Becker's aunt, Julie Lance, adopted her three-year-old son and currently has custody of her one-year-old. He eldest child, a four-year-old has been adopted.

Her cousin, Terra Ordonez, said that she was hoping that Becker will recover from this low.

'I'm excited for her to straighten up and get clean because I know she's smart enough to get out of it,' Ordonez said. 'It's an eye-opener for a lot of women who are struggling. If you're pregnant, scream for help.'