Well, in fanfiction, the father of Bay's baby could be anyone the writer imagines. It could be a hidden love interest, a surprise encounter, or even a result of a complex plot twist. There's no one fixed answer as it all depends on the author's imagination and the story they want to tell.
It could vary depending on the specific fanfiction. Maybe it's a character introduced especially for that story.
Another option could be an alien from Starfire's home planet. This would add an interesting dynamic as the baby would have a strong connection to Starfire's alien heritage. It could also bring in some unique storylines about the alien culture and how it affects the baby's upbringing. Maybe the alien father has certain powers or responsibilities that are passed down to the baby.
Maybe it's a completely new character, someone from a different part of the wizarding world. He could be a mysterious wizard with a special talent or power that Rose was drawn to. This would open up a whole new set of plotlines as the reader discovers more about this unknown character and his connection to Rose.
It could be Sai. Since they work together and have developed a relationship over time, it's possible that they could end up having a child together.
Another possibility is Clark Kent himself. Their friendship was very strong, and there were always some unspoken feelings between them. A situation where Clark is the father would bring about a lot of emotional turmoil as they both try to figure out how to handle this unexpected development.
It could be someone Ginny had a past relationship with before Harry. Maybe an old schoolmate or a character from a side plot in the fanfiction.
I haven't read this specific fanfiction in detail. But generally, in fanfiction about 'Switched at Birth', stories involving Bay and Emmett can be really interesting. They might explore different relationship dynamics, like how they deal with new situations if there was a baby involved. It could add a whole new layer of complexity to their relationship.
It could be Klaus. Given their complex relationship in the series, it's possible that in fanfiction, they had a moment that led to her pregnancy. Klaus has always had a certain fascination with Caroline, and this could be an interesting twist to their story.
The father could be John Smith. Their relationship in the original story was complex and having a baby together would add a new dimension to their story. It would also explore how they navigate parenthood given their different backgrounds.
Maybe it's a mysterious character. The fanfiction could introduce a new character as the father, someone with a hidden past or special abilities that add an element of intrigue to the story.
It could be a character she has had a long - standing relationship with in the original story. Maybe someone who has been by her side through many adventures and they shared a deep emotional connection which led to the baby.