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.
You can try Archive of Our Own (AO3). It has a large collection of Sherlock and Molly fanfictions, including those with a lemon theme. Fanfiction.net is also a good place to look. There are many dedicated Sherlock fans who post their works there.
One great Sherlock and Molly lemon fanfiction is 'A New Beginning'. It shows their relationship developing in a unique way. Another is 'Unspoken Feelings' which delves deep into their unexpressed emotions. There's also 'The Lemonade of Love' that has a really sweet and engaging plot.
In Sherlock fanfiction, the idea of Sherlock as a family man often involves a shift in his character. If Molly is part of this scenario, it could be a really interesting dynamic. Maybe Sherlock's deductive skills are used to understand family matters in a new way, with Molly being a grounding influence. For example, in some fanfics, they might have a child together and Sherlock has to learn to be more empathetic and less cold, with Molly guiding him through the process.
One common theme is the unrequited love. Often, Molly has feelings for Sherlock that he may not initially recognize or reciprocate. Another theme is the friendship aspect. Their relationship starts as colleagues but gradually turns into a deep friendship that could potentially be more. And mystery is also a big theme. Since Sherlock is all about solving mysteries, fanfictions often incorporate this into their relationship, like Molly helping Sherlock solve a mystery related to his past or something.
One aspect of Sherlock and Molly's relationship in fanfiction could be the slow - burn nature. In many stories, Sherlock, who is often seen as detached and logical, gradually realizes his feelings for Molly. Their relationship might develop through shared cases, where Molly's scientific knowledge and understanding of Sherlock's quirks become important. For example, she might be the one to notice a small detail in a crime scene that Sherlock overlooks because he's too focused on the big picture. This could lead to a deeper connection between them as they work together more closely.
Writers often develop their relationship by showing Sherlock's initial confusion and struggle with the new situation. He might be out of his depth when it comes to dealing with Molly's pregnancy, which leads to some interesting interactions. They also might show Molly being patient with Sherlock as he tries to come to terms with becoming a father. For example, she could gently guide him through the process of doctor visits and preparing for the baby.
Sherlock might also feel a sense of responsibility, even if the pregnancy wasn't his doing. Given his loyalty to his friends, he would probably try to be there for Molly. He could use his connections to ensure she has the best medical care available. And in the long run, this could be a turning point in his relationship with Molly, either bringing them closer together or causing some strain depending on how he handles the situation.
The chemistry between Sherlock and Molly in the original series has a lot of potential that wasn't fully explored. Fanfiction allows fans to expand on that. The idea of them kissing is exciting as it's a turning point in their relationship, from just being colleagues or friends to something more intimate.
One possibility in this fanfiction could be that Sherlock initially struggles with the idea of having a baby. He's so used to his logical, detective - focused life. But Molly's nurturing nature helps him gradually come to terms with it. Maybe the baby inherits Sherlock's incredible observational skills and Molly's kind heart.