Abby Johnson quit her job. That simple act has become a national news story because Johnson, 29, was the director of a Planned Parenthood clinic in Texas who said she experienced a “change of heart” while participating in an abortion procedure.

Johnson has now joined a group called Coalition for Life, which prays outside the clinic where she worked.

“I had never seen an abortion happen on an ultrasound,” she said. “My job during the procedure was to hold the probe on the woman’s abdomen. I could see the whole profile of the baby 13 weeks head to foot. I could see the whole side profile. I could see the probe. I could see the baby try to move away from the probe.”

Johnson worked at the Planned Parenthood clinic in Bryan, Texas, for nine years, first as a volunteer and then as the director. Her duties included running the family planning and abortion programs. The clinic performed abortions two days a month.

Although she had seen ultrasounds before, including during her own pregnancy, Johnson said she had never seen an ultrasound image during an abortion. She is unclear why, as the director of the clinic, she was asked to be in the procedure room on that day, because it was not a normal part of her duties. Still, Johnson said, the experience changed her forever.

“I just thought, ‘What am I doing?’” she said. “And then I thought, ‘Never again.’”

Two weeks later, Johnson quit.  “I looked out the window and saw a couple of women praying and I thought, ‘That’s where I need to go,’” Johnson said.

She walked down the street and into the welcoming arms of the Coalition for Life.  Johnson’s defection will undoubtedly be seen as a public relations coup for the antiabortion movement, not unlike when “Jane Roe” herself announced that she had become a member of Operation Rescue — an anti-abortion rights group.

Excerpts from ABCNews.com.