A Michigan woman said she will “most likely” go to jail this week if she refuses a court order to vaccinate her 9-year-old son.

And Rebecca Bredow, it seems, is willing to take that risk.

“I can’t give in against my own religious belief,” she told The Washington Post on Saturday. “This is about choice. This is about having my choices as a mother to be able to make medical choices for my child.”

Bredow, who lives in a Detroit suburb, has been embroiled in a custody battle with her ex-husband, James Horne. Last November, an Oakland County court sided with Horne, ordering Bredow to get their son vaccinated. But she has so far not done so. Bredow said the county judge had given her until Wednesday to get her son the medically allowed amount of vaccination, which would be up to eight vaccines.

“I haven’t had the opportunity to have my side heard,” she said, adding later: “Most likely, I’ll be going to jail on Wednesday.”

Parents who either delay or refuse vaccinations for their children do so for a number of reasons, including religious, personal and philosophical beliefs, safety concerns and a desire for more information from health-care providers, according to 2016 research published in the Journal of Pediatric Pharmacology and Therapeutics.

The American Medical Association has long decried allowing parents to decline vaccination for nonmedical reasons, and has cited its ability to prevent diseases such as measles, mumps and other infectious diseases. Still, a majority of states allow religious exemptions for vaccinations. Nearly 20, including Michigan, provide exemption for religious and personal reasons. Only three, California, Mississippi and West Virginia, don’t allow nonmedical exemptions.

The legal dispute comes amid a growing anti-vaccine sentiment, which began in 1998, when a medical journal published a now-discredited study linking vaccination with autism. The once-fringe movement has become more popular and received a nod of approval from Donald Trump, who repeatedly suggested a link between vaccination and autism.