The first thing they did was phone Martha, who told them to come right over.
"It was the night of your wedding," River said, nervous energy bleeding in as she paced.
"Okay, but who was he?"
River wracked her brain, so much of that night a blur. She thought she remembered… nothing. The feeling of being safe and wanted, but the empty room the next day disproved that memory.
"Jack!" Martha exclaimed suddenly, as she and Donna scrolled through various photos from that night.
"Who?" River asked suddenly.
"Mickey's friend," Martha pointed, and Donna swooned a bit.
"Yes, I remember him," she replied dreamily.
"Well, I don't," River snapped.
"No, I don't think you spent much time with him, but I remember he brought a friend! The Professor, maybe? Some type of title."
Mickey came through the door, arms circling his new wife as he laid a kiss on her temple.
"What's everyone doing in 'ere then?" he asked, head resting on Martha's shoulder.
"Mickey, this bloke here, the young one- Jack's friend who crashed our wedding, what's his name?"
Mickey squinted at the photo.
"The Doctor! Oh, I didn't even realise 'e came."
"Doctor who? Of what?" asked River, suddenly slightly hopeful. Her baby's father was intelligent, at least.
"No one knows. We think it's just the name he goes by. He sor' of tinkers about, mostly. They say his folks abandoned 'im, left him to fend for 'imself early on, so 'e just travels about in his rattl-y old car wherever he feels like. Kinda strange."
At River's sound of despair, Mickey looked at her, alarmed.
"Why? Wass wrong?"
"River's pregnant, you dolt," Donna snapped, rubbing her forlorn friend's back as she put her face in her hands.
"And "the Doctor's" the father," explained Martha.