(KCEN) -- A Houston area mother has confessed to killing her baby.
She reportedly told police it wasn't the first time.
Twenty-year-old Kristi-An Walker faces several felony charges, including murder.
She confessed to killing her 6-month-old son.
Back in June, she called 9-1-1, saying her infant was unresponsive and that she was performing CPR until help arrived.
The baby died a few hours later from severe head trauma.
After being arrested Tuesday for her child's death, she said she wasn't actually trying to save her baby at all.
Sergeant Kirk Coleman of the Angleton Police Department said, "According to her, she didn't actually do CPR. She pretended to do CPR."
That's not all she admitted to.
Police say she's done this before to another son who was 4-months-old son when he died from her abuse in Freeport last April.
She also faces charges in that case.
And most shocking of all, police say Walker is pregnant again.