The soap star, who has played the role of Sam Dingle for 21 years, since 1995, has spoken exclusively to OK! magazine about becoming a dad for the second time.
Nancy gave birth to their second daughter at Leeds General Infirmary on 29th January at 12.13am – just 13 minutes after her due date.
The mother-of-two said; 'I actually probably could have pushed her out a bit quicker so she arrived on her due date!'
The couple named the 8lb 3oz newborn Ava-Rose Maureen Lucas Hooton, despite previously suggesting that they would continue the flower theme of their first daughter, nine-year-old Lily.
James explained how he was actually on set, filming for Emmerdale, when Nancy went into labour; 'I had my phone in my pocket because I knew she could go into labour at any time. I was sat in the green room and I had two more scenes to do when I got a text at about 2.30pm saying - there's no problem or anything but just get in touch when you can.'
The actor rang his fiancée only to find out that she was in labour, James said; 'I rang her and she explained the situation and I said - It sounds like you're in labour!'
It 'only took three pushes' and '10 minutes' before Ava-Rose was born, a quick ending to what has been a long process of trying to get pregnant for the family.
Speaking in December, James told OK! magazine; 'We were hoping to get pregnant sooner - we've been trying for about two years but it wasn't happening. Then suddenly out of the blue we fell pregnant and it was a pleasant surprise.'
Nancy added; 'Because we'd been trying for so long, we had a massive stockpile of pregnancy tests, which we'd been doing sporadically. So one night I went upstairs while Lily was in bed, did a pregnancy test and then ran back downstairs and said - is that two lines James?'
Congratulations to the couple!