mallory maddox has the story. >> reporter: eric and mary 00 road to parenthood has been nothing short of a miracle. >> i knew something was off. my ob knew something was off the way i looked. >> reporter: mary was diagnosed with preeclampsia, and now faced with delivering her baby boy 16 weeks early. >> would he survive basically. >> reporter: nathan came in weighing 14.99 ounces. he was only 10 inches long. >> his first picture i have my pinky right next to his hand. and my nail of my pinky is as big as his hand. >> reporter: this doctor has more than 30 years experience. nathan is the smallest baby they have ever had in the nicu. >> there have been others of this small. but he's one of the smallest. >> reporter: he had kidney failure, a brain bleed, pneumonia. the heartbeat showed nathan's were not staying consistent. >> in his case, it clearly gave us a warning that things were changing before any of us could make that assessment. and in fact he was developing pneumonia and got quite ill. >> reporter: armed with antibiotics, this super hero bounced back. >> from the minute i saw hi