Casey Anthony, the Florida woman who was acquitted of murdering her toddler daughter, is worried her biological clock is ticking and wants more children, a report said.

“She knows she’s getting older,” a source described as being “very close” to the 33-year-old told People. “She’s not the young girl who everyone saw on trial. She’s in her 30s, wondering what to do next, and hoping that she can find some meaning in her life.”

At her 2011 murder trial, prosecutors said that the single mom, then 25, had killed her daughter Caylee in June 2008 by covering her mouth with duct tape and dumping the body in a wooded area.

They contended that the child had kept Anthony from a life of dating and partying. The skeletal remains of Caylee were found a quarter of a mile from the family home, six months after she disappeared.

A physician called to give evidence at the trial was unable to provide an exact cause of death, and prosecutors were ultimately unable to link Anthony to the murder.

If she had been found guilty, Anthony could have received the death penalty, but after 33 days of testimony from more than 100 people and hundreds of pieces of evidence, the jury took 10 hours to pronounce her not guilty of the most serious charges.

Although she was cleared of murder and other charges in the disappearance and death of her 2-year-old daughter, Anthony was sentenced to four years in prison for lying to police who probed the tot’s death.

Anthony, who lives in West Palm Beach, began dating a man last year, but the relationship ended, the source told People.

“Marriage, family, the white picket fence,” said the source. “In some ways, that’s very appealing to Casey. She’d want things to be less dysfunctional than the family she had growing up, but she likes the idea of stability.”

Earlier this year, Anthony — who was considered one of the most-hated mothers in the United States during her trial — revealed that she was working on a film about her life.

The title of the film is to be “As I Was Told,” which Anthony said comes from her failure to report her daughter’s disappearance.