Personal trainer Jenna Foster has been running for years, so after getting clearance from her doctor, she decided to bring her newborn along with her during a local 5K race. When the baby got hungry, Foster didn't skip a beat, breastfeeding him as she lightly jogged the course.

It's a decision that went viral.

Key Takeaways:

• Personal trainer Jenna Foster has gone viral for breastfeeding her son while running a 5K race.

• Though not every mom is able to exercise while postpartum, Foster said she wanted to show "that you can still exercise and train hard after having kids."

The Details:

Foster, who lives in Maryland, gave birth in July. Though she is recently postpartum, she said she regularly exercised through the duration of her pregnancy, and was given clearance from her doctor to participate in a 5K.

As the race started, Foster pushed her infant in his stroller, but things didn't go quite as planned. She detailed what happened in an Instagram post.

"I thought for sure he’d fall back to sleep once we started moving, but around 1 mile into the race he made it very clear that it was time to eat," she shared. "We set out to finish the race, so that’s what we did. With a fed baby."

She further detailed the experience in an interview with PEOPLE.

“I knew he needed to eat. There’s a distinct cry when he’s hungry, and I didn’t want to make him wait that long,” she said. “I also knew I had to stay with my daughter, and she really wanted to finish the race. She pushed the stroller while I nursed my son, and we walked together towards the finish.”

Foster didn't stop to feed her infant; instead, she picked him up and nursed him while continuing the race. She crossed the finish line at a light jog while still feeding her baby, as the crowd cheered her on.

Zoom In:

Many women may not be able to run a 5K in the weeks after giving birth — and that's ok. But Foster's example shows that life doesn't always have to slow down when you have kids.

"I run for the challenge. For my mental health. To encourage others to move. To set an example for my children," she said. "And to remind other parents that you can still exercise and train hard after having kids."