Love is also a major theme. Usually, there is a romantic relationship involved. It could be between a vampire and a human, or between two vampires. The pregnancy then adds another layer of complexity to the relationship. For instance, they have to worry about how to protect the unborn child and how their relationship will change because of the pregnancy.
Another theme is the mystery and danger associated with the pregnancy. Since it's not a common occurrence in vampire lore, there are often unknown elements. There could be prophecies or curses related to the pregnancy. Also, the physical and emotional changes that the pregnant vampire goes through are often explored in a way that creates a sense of mystery and keeps the readers engaged.
One common theme is the struggle against society. In many of these fanfictions, the vampire getting pregnant goes against the norms of the vampire world. For example, vampires are often seen as immortal and not supposed to reproduce in the traditional sense. So, the pregnant vampire has to face discrimination or even threats from other vampires.
One common theme is the struggle between the vampire nature and the new - found state of pregnancy. Vampires are often depicted as cold, immortal beings, and pregnancy brings a whole new set of emotions and physical changes that conflict with their nature. Another theme is the reaction of the vampire community. Some may be accepting, while others may see it as an abomination.
One common theme is the struggle with identity. Bella is no longer just human or a new vampire, but a pregnant vampire which is a whole new identity. Another theme is family. The Cullen family's reaction and support (or lack thereof in some cases) play a big role.
One common theme is the challenges the character faces during pregnancy. This could include dealing with her vampiric nature while being pregnant, which might bring up issues like how her diet or powers are affected. Another theme could be the reactions of other characters in the Rosario Vampire world, such as her friends, family, or enemies.
The theme of sacrifice is quite prevalent too. A pregnant character may have to sacrifice their own desires or even their safety for the sake of the unborn child. They might have to give up their freedom, their power, or their relationships in order to ensure the well - being of the baby. This sacrifice adds a layer of drama and emotional depth to the fanfiction stories.
In many of these fanfictions, a common theme is the reaction of the vampire society to Yuki's pregnancy. Since vampires have different values and traditions compared to humans, this can create a lot of interesting plot twists. Another theme could be Yuki's struggle to adapt to her new situation while still being involved in the power struggles and secrets within the Vampire Knight world. Some fanfictions also explore how her pregnancy might change the power balance among the different factions in the story.
Love and protection are also big themes. The pregnant character is often in need of protection, not just from the normal threats in the 'Vampire Diaries' world but also because of the preciousness of the unborn child. There's also the theme of identity. How does being pregnant change the identity of a vampire or a witch in the story? For instance, a vampire who was once carefree might become more responsible when expecting a child.
One possible theme could be the struggle of Sasuke and Sakura dealing with a pregnancy in a world where vampires exist. It might involve protecting the unborn child from vampire - related threats.
One common theme is survival. Since 'The 100' is set in a harsh world, the pregnancy adds another layer of challenge. The characters have to ensure the survival of the mother and the unborn child in a world full of danger.
One common theme is the struggle against the odds. Since they are in a world full of vampires, witches, and other supernatural beings, the pregnancy is a huge challenge. Another theme is the development of their relationship. Often, the pregnancy forces them to re - evaluate their feelings for each other and become closer. For example, Damon might become more gentle and caring, which is a big change from his usual self.
One common theme is the struggle with identity. Harry, being a vampire, has to deal with a new side of himself that he may not fully understand at first. For example, in many fics, he has to figure out how to balance his wizard self with his vampire instincts.