Steve and Heidi nearly didn't have, we weren't able to have children. But when he was born, it was everything changed. It was mind blowing. And the funny thing about me on set is, I used to be one of those fellas who, I didn't really pick babies up. After I had my own son, what happens on the set of call the midwife now, is I'm soppy for babies. Steve: "I will just hold a baby happily"