"I think it was a defense mechanism. We moved around so much, and there were so many of us..." Three kids, then four, in little base housing; and she was always busy, a trait she's never been able to shake. Finding moments to rest in between activities, fights, trips-- it was a necessity. William, she hopes, will have a little more peace.

But Mulder isn't wrong; it'll be harder to deal with, on her own, if he's not a good sleeper. She doesn't really care-- no matter what, she'll love him, she'll manage-- but it's strange to imagine single motherhood in this latest set of changed circumstances. When he's close, but kept at arm's length.

"Tomorrow," she hazards, "you can come see the sonograms. If you want. I have them at home."