This is what I think could've been running through Booth's head the night that Bones told him she was pregnant.
Disclaimer: I don't own Bones, Fox does. If I owned Booth though, that would be okay :)
As everyone was waiting for Hodgins' and Angela's baby to be born, I laid my head back on the chair and thought of what all Bones and I had been through. 7 years of being partners and torturing each other with the tension between us, we had broken through, opened the floodgates.
Bones had been extremely upset after Vincent Nigel-Murray had died, and had sought comfort in my arms. After she lay in my arms and sobbed for a while, we lost control and finally gave into each other. And here we were a month and a half later, sitting in a hospital waiting room, for the birth of our friend's baby, and all I could think of was me being in Hodgins place, and Bones in Angela's place, if only. It would be one of the happiest days in my life, if not the happiest day.
I knew that was likely to never happen. We would never get married; Bones believed it was antiquated ritual, which was no longer necessary. Sometimes I just wanted to shake some sense in her beautifully, intelligent head that feelings weren't rational. That we had to take the love in our lives with stride, eventually to find happiness. The events of our night together kept running through my mind. How her tears moved me, and I wanted to kiss them away.
Before my mind could run away to more complicated memories and far away fantasies, Hodgins came out with a tiny bundle. "Everybody, I would like you to meet my son," I couldn't stop smiling at the look on Hodgin's face. "Michael Stacato Vincent Hodgins." Poor kid. Everyone's joy was palatable in the room, Cam with her hands to her chest, Sweets laughing along with Hodgens. Even Bones had to get a closer look.
After Bones visited Angela and everyone said their goodnights, I walked Bones home. "They look so happy." She says. "Well, yeah they just had a baby." I tell her. "Well their whole lives have changed; you think they'd be a little more apprehensive." Ahh Bones my rational girl.
"Well you know having a baby, that's a good thing" I said. "You really think that?" "Yea, it's a great thing. What? What?" She just stood there looking at me. "Oh come on Bones, the baby, the baby is healthy. They had a healthy baby, alright? They love each other; this is the happiest day of their lives. Okay?" She still looked like there was something on her mind. "What?" I said after a second under her worried gaze. "I'm, I'm pregnant." I just stood there in shock. I didn't think it could possibly be mine; we had only been together for a month and a half. "You're the father." A smile broke across my face, as I couldn't contain my happiness. Oh, God, you work in mysterious ways.