Fergie has said her son has taken his first steps, but that her husband Josh Duhamel missed the milestone.
Baby Axl, the couple's first child, is 11 months old and the Black Eyed Peas singer has told Us Weekly that he is trying to walk, describing how she saw him negotiate some stairs.
She said: "He just had his first steps [on] August 12th. I was shocked. He climbed up the stairs and he climbed back down. I was helping him back down and he got up the stairs and he [stretched out his arms] and came to me.
"It was exhilarating. I just thought, 'Did my son just walk?'."
But Fergie added that husband Josh didn't get to see Axl's first steps: "He was at work. I felt so bad. But you know, we're both working parents so each of us are going to get different gifts."
The singer also said that she and her husband of five years worked to keep the romance alive with spontaneous date nights.
She explained: "We'll have a date night and we'll say goodbye to Axl and we'll go on a date - we don't decide where we're going out to dinner. We'll just kind of drive around, maybe we'll go have a drink at some new place, we'll just drive around and see whatever piques our curiosity. Sometimes we'll go to a dive bar, we'll play darts ... whatever is of the moment."