LONGMONT, Colo. (KMGH) — A teenage lifeguard in Longmont, Colorado, helped deliver a baby while at work.

“It’s a pretty calm day usually,” 18-year-old lifeguard Natalie Lucas said, talking about her regular Sunday shift.

Calm is was what she was expecting on a Sunday morning late last month. That’s when expectant mother Tessa Rider, who was nine months pregnant, visited the YMCA pool.

“Thought, 'Oh, I’ll go for a swim. It’ll be nice and cool,'” Rider explained.

Rider’s swim didn’t last long.

“It suddenly dawned on me we weren’t making it to the hospital and he was coming out right then and there,” she said.

“The husband tells me they’re having the baby, and I’m like, 'Alright.' And the adrenaline kicks in right then and there," Lucas said.

Lucas requested for someone to call 911, grabbed a medical bag and towels, and was right there Rider pushed.

“She was there to do anything we asked. And the first thing I could think of was could someone hold my back up. And she did, and it was perfect,” Rider explained.

“The baby was already kind of coming out, and it was quick. I would say less than five minutes that it all happened,” Lucas said.

Baby Tobin was born happy and healthy on the pool deck of the YMCA.

“Without her, I would not have been able to safely focus my attention that Tobin came out and that he was safe and healthy,” dad Matthew Jones said.

Right after the birth, someone snapped a photo of the four — dad, mom, baby and lifeguard.

“I stayed calm, I helped them through from beginning to end that Sunday. It was quite the crazy thing to happen, but I’m pretty proud of myself,” Lucas said.

Lucas is off to college in the fall, after an experience she wasn’t expecting, but one that she admits she’ll never forget.

“I do hope to send the little guy birthday cards here and there,” the teen said with a smile.

As for baby Tobin, he gets a lifetime membership to the YMCA.

“He’s definitely going to be a swimmer,” Rider joked.

This story was originally reported by Jason Gruenauer on thedenverchannel.com

Kelly McGough of Carnegie can't stop thanking her son Christopher. The sixth-grader jumped into action when she went into labor two weeks early at their home.

Before the paramedics could arrive, Christopher helped deliver his baby brother, then got himself to school.

Watch the full story in the video player above.

"I heard her yell, 'I need help' so I rushed downstairs to see what she needed, and the baby was just like coming out. So I had to run up and down the stairs getting towels for her to wrap around the baby," Christopher said.

The newest member of the McGough household, Damien Thomas, couldn't wait until the due date of May 6.

Kelly called 911, and Christopher did too while his mom had her hands full.

"He was like 'Well the paramedics are coming' And I pushed again and kind of just caught the baby and put him like on my chest then 2 or 3 minutes later the paramedics come walking in," Kelly said.

Christopher saw the ambulance arrive at their home.

"It was a huge relief, I just started taking deep breaths," Christopher said.

"He was surprisingly calm for the whole situation that was going on," Kelly said.

"I needed to make sure you were OK, that was all I was worried about," Christopher said.

After he knew his mom and baby brother were going to be OK, Christopher got on the bus.

Tuesday ended up being a big day in a very busy week for the sixth-grader.

"On Monday, Wednesday and Thursday of this week we had a baseball game. So a very busy week," Christopher said.

Christopher, a pitcher, got six strikeouts during Wednesday's game.

Kelly also expressed gratitude for the paramedics who rushed her and baby Damien to the hospital.