I don't know, this is an excellent crack theory that is getting better by the minute (scroll down to look at the pictures on the comments below), but the angst potential is high and I don' t like it. It isn't like the 'classic' scenario where the baby mama is single (for example, the mother of Worf's suddenly found son, Alexander....or even more so, the single woman who had a kid with Captain Kirk in the movies and for some reason raised him alone instead of with Kirk [murderous Klingons? the mother's paranoia would soon be justified]), Strauss is married, and she had two other kids with her husband.

Unless it happened while they were separated, and he was 'cheating' on her as well as she was 'cheating' on him, maybe.