It's possible that Rachel and Will are characters from a less - known or niche media. They could be part of a small - scale web series or a local theater production that has a dedicated fan base. In the fanfiction, the writer may be expanding on the hinted - at relationship between them from the original source material and taking it in the direction of pregnancy, exploring how that would change their lives, their relationships with other characters, and their own personal growth.
Since I don't know the exact story, Rachel could be anyone. She could be a fictional character created for a novel, a real - life person that the storyteller knows personally, or just a name used in a parable.
Rachel Trapani could be a local figure in a particular town or city. Maybe she is known for her volunteer work and the 'Secret Story' could be about the real impact she has made through her selfless deeds, which are not widely known. It's also possible that she is an artist or a writer and the story is related to her creative process that she has kept private.
Finn could be involved. Maybe he got into a huge fight with Rachel over something, like her career choices affecting their relationship, and in the heat of the moment, someone filed a restraining order on her behalf. Quinn might also be involved. If she still had some unresolved jealousy or issues with Rachel, she could be the one who instigated the restraining order, either directly or by influencing others.
Finn could be involved if the fanfiction wants to explore a relationship with him as the possible father. He was an important part of Rachel's life in the original series, and his reaction to the news would be significant.
At this point, it's hard to say for sure. But considering the 'Life Is Strange' series, we might see Chloe as she has a significant connection to Rachel.