One interesting fanfiction could be about Randyll Tarly's early life and how he was trained as a warrior. It might explore his relationship with his family members before the events in the show or books.
Samwell Tarly could be a great character to pair with Randyll. Their father - son relationship is complex and full of conflict. A fanfiction could explore how they might reconcile or further their differences in an alternate scenario.
In fanfics, all kinds of scenarios are possible. Just because it's written doesn't mean it adheres to the original canon. Maybe the author wanted to explore a unique relationship dynamic through this pregnancy plot. However, without reading it, it's hard to say more about it.
I don't know who Sam is without reading the 'kings fund sam's story'. Sam could be a patient, a researcher, a staff member or someone else related to the Kings Fund.
Sam could be just an ordinary guy who loves exploring the woods. He might be a nature enthusiast who spends his free time in the forest, and one day he just happens to come across Bella.
Sam Evans in 'sam evans first time fiction' is a mystery. He could be an aspiring writer who is making his first foray into fiction writing. Or he could be a fictional character in the story, with his own unique backstory and personality. We just need more information to be certain.
Sam the Anaconda was a character in the movie " The Anaconda 2: Search for the Blood Orchid ", played by Cardi Stryland. She was Dr. Jack Byron's assistant, and she was passionate about her work and actively participated in rainforest expeditions. In the expedition team, she had always stood on the side of justice and served everyone with an honest heart.