TEXAS — A Texas mother accidentally ran over her 23-month-old son with her car on Wednesday, injuring the toddler, and later shared details of the accident and safety guidance on Instagram. Kelly Hopton-Jones, a 36-year-old pediatric nurse practitioner and stay-at-home mother of two, was driving when her son Henry was struck.

Hopton-Jones had planned to drive her 4-year-old daughter Lily to grab doughnuts before a dance performance when the accident occurred. "In a matter of seconds our son was run over by our car. I was driving," she wrote on Instagram.

The parents left their daughter with neighbors and rushed Henry to the hospital. He sustained fractures to his pelvis and abrasions. X-rays of his legs, chest and neck were all normal, a CT scan showed no injury to his organs or spinal cord, and a neurological exam showed no signs of head injury or impairment. The doctor said: "He is hurt, but this is something he can recover from."

Hopton-Jones said her family is in shock and sad following the incident. "We're on the lucky side of a very tragic accident," she said. "We keep replaying it, trying to understand how this could've happened when we were right there. I don't have that answer."

She reflected on the circumstances of the morning in another post. "It's so easy to start questioning everything. If the morning had looked different. If B had gone to work like he normally would have, both kids would have been safely in their car seats," she said, referring to her husband Brian. "But accidents happen."

In her posts, she urged other parents to take precautions, writing that the accident can happen to parents even when they are not distracted or not rushing. She wrote: "Non negotiable to hold or hold hands with young children around vehicles." She also wrote: "Do not assume they know or will stay where you last saw them." She added: "Accidents happen, and the only mistakes are the ones we don't learn from."

Kids and Car Safety said 50 children are backed over by cars every week in the United States, and in 70% of these incidents a parent or close relative is behind the wheel.