Yes, there are many Sherlock Molly pregnant fanfictions. Writers like to create this scenario to see how the characters, especially Sherlock, will react to such a life - changing event. It can also be a way to explore Molly's character more deeply, as she navigates motherhood and her relationship with Sherlock.
Molly Bloom is the central figure in this true story. Without more context, we can assume she is an individual with a story worth telling, perhaps someone who overcame difficulties or had a remarkable life.
Maybe there is a bully in the story. If Molly learns a lesson about standing up for herself or kindness towards others, a bully character could be present. The bully could be causing trouble for Molly or other students, and Molly's experience with the bully is what makes her learn an important life lesson at school.
The story of Molly Bloom is typically not considered real. It might draw inspiration from various sources but is crafted for entertainment or artistic purposes, not to represent actual events.