Amber Miller says she felt contractions minutes after crossing the Chicago Marathon finish line.

A few hours after completing the 26.2-mile race Sunday, the
suburban Chicago woman gave birth to her daughter, June.

The 27-year-old is an experienced marathoner who found out she
was pregnant after signing up for the race months ago. She figured
she'd play it by ear on whether or not she'd run. When the baby
hadn't been born by Sunday, she got clearance from her doctor to
half run and half walk the race.

She finished in 6 hours and 25 minutes, much slower than her
previous seven marathons.

Miller spoke to The Associated Press from the hospital and says
she received encouraging cheers during the race and never felt bad,
except for some feet blisters.