CHESTERFIELD COUNTY, Va. A Chesterfield couple is counting their blessings after their son was born prematurely in a parking lot, delivered by first responders in an ambulance before the vehicle could even reach the hospital. Months later, the family reunited with the firefighters and medical team who helped give their baby a fighting chance.Kate McCoy had been pregnant for nearly 25 weeks when she woke up one morning not feeling well and fell i…