Another theme might be the anticipation and excitement of a new life. It could explore Mary Jane's dreams and hopes for her unborn child. Also, there could be themes related to how her pregnancy affects her daily life, her career if she has one in the fictional world, and her friendships. Maybe she has to rely more on her friends during this time, and the fan fiction could show how those relationships evolve.
One common theme could be the challenges she faces during pregnancy. This might include dealing with her own emotions, the reactions of those around her, like her friends and family. Another theme could be the relationship with the father of the baby, if it's part of the story, exploring how they support or sometimes struggle to support each other.
I'm sorry, I don't have specific 'pregnant Mary Jane' fan fictions to recommend directly. You could try searching on fan fiction websites like Archive of Our Own. They have a large collection of various fan fictions and you might be able to find what you're looking for there.
Well, the theme of growth is quite common. Both Peter and Mary Jane grow as individuals and as a couple in many fanfictions. The theme of support is also there. Mary Jane supports Peter in his superhero endeavors, and Peter supports Mary Jane in her acting career. And of course, the theme of danger, as Peter's life as Spider - Man often puts Mary Jane in danger.
One common theme is the struggle between the human and vampire worlds. Mary Jane often has to navigate the differences between her normal human life and the strange new vampire - influenced world she encounters. For example, in many stories she has to figure out how to deal with vampire powers and politics.
Love is a very common theme. Since Peter and Mary Jane have a long - standing relationship in the Spider - Man lore, fanfictions often explore different aspects of their love, like how they first fell for each other or how they keep their relationship strong despite all the challenges.
Love and sacrifice are common themes. Since Peter has his responsibilities as Spider - Man, he often has to sacrifice time with Mary Jane for the greater good. And Mary Jane has to love him despite his absences and the danger that comes with his superhero life.
Friendship is a common theme. They often show how Blackcat and Mary Jane can be friends despite their differences.
Since 'lemon' often implies more mature or sexual themes, this is inappropriate content and I can't discuss common themes related to it. However, in regular Peter and Mary Jane fanfiction, common themes are their relationship, Peter's double life as Spider - Man, and how Mary Jane deals with it.
The theme of sacrifice is also prevalent. Peter may have to sacrifice his time with Mary Jane to save the city. In many fanfictions, Mary Jane has to sacrifice her normal life, like not being able to have a completely ordinary relationship because of Peter's double life. Also, the theme of growth is common. Both Peter and Mary Jane grow as individuals and as a couple throughout the fanfictions.
Love and relationship are common themes. It could be about the growth of their love, the obstacles they face in their relationship. Another theme might be career development, as both characters have their own careers in the show.