At Rush University Medical Center at any given time, there are 30 to 40 babies in the neonatal intensive care unit.
Nurse Emma McGee has been caring for the little patients for six years.
She is very familiar with the unit and some of the staff.
Emma McGee was born prematurely in 1997.
She and her twin brother are part of the NICU Hall of Hope.
"Usually parents are really astonished to hear this story, and I think it gives them a lot of comfort," McGee said.
It's a family affair. McGee's mother has been a nurse for 17 years. Katie McGee recalled a difficult six weeks in 1997.
"I will never forget how stressful it was, and I will never forget the people who were put in my path," Katie McGee said.
NICU nurse Doreen Doran was one of the nurses who cared for McGee and her brother as premature babies.
"The day she came on the unit and her mom saw us together she was crying; the two of us had gone full circle," Doran said.
"It feels like a second home to me," Emma McGee said.
Both mom and daughter nurses say they love their patients and running into each other at work.
"I would say, 'hi, honey.' Or she is so little I'd give her a little kiss on the head and people were like, 'what's going on here?' And I'd say, 'this is my preemie,'" Katie McGee said.
"They don't realize. Some people who just started are like, 'who was that lady who just kissed you?' That's my mom," Emma McGee said.
This Mother's Day, Katie McGee, who is a mother of five, is looking forward to a nice brunch.
Emma McGee is working a 12-hour shift, helping the babies and moms make the best of the day.