The character of Whis could also be included. He could offer some otherworldly perspective on Bulma's pregnancy. Maybe he has some knowledge about the future of Bulla or some special advice for Bulma. Additionally, Beerus could be in the story, perhaps being grumpy about the whole situation but also secretly interested in the new life that is about to come into the world.
Chi - Chi could be an interesting addition. She has her own experiences with raising a Saiyan - human hybrid (Gohan). She could offer advice to Bulma about pregnancy, child - rearing, and dealing with a Saiyan husband. Another character could be Bulma's father. His reaction to becoming a grandfather and his possible inventions to help with Bulma's pregnancy would add an extra layer to the story.
A plot could revolve around how the news of Bulma's pregnancy affects the Z - fighters. They could all come together to support her and Vegeta. And as Bulma is pregnant with Bulla, there could be some comical moments where the Saiyan and Earthling cultures clash in terms of baby - related traditions.
Goten could be a great addition. As Bulla's brother, his relationship with Bulla can add an interesting family dynamic to the fanfiction. Also, his Saiyan powers could interact in unique ways with Naruto's ninja skills.
Frieza or his remnants could be antagonists. They might see the unborn child as a potential threat in the future, especially if it has strong Saiyan powers. So they could plan to attack Bulma to prevent the birth.
Definitely her best friend. They could be there for her through all the mood swings, give her advice, and go shopping for baby stuff with her. Her parents, if they are part of the story's universe, would also be important. They could provide financial and emotional support. And if there's a love interest, he should be in it too, showing his care and concern, or maybe even having some doubts that they need to work through.
One possible scenario could be that Vegeta and Bulma constantly show their love for Bulla by taking her on special adventures. For example, they might take her to visit other planets in the Dragon Ball universe where she can learn about different cultures and powers. This would not only strengthen their family bond but also help Bulla grow as a person.
Bulma would likely be a main character. As Bulla's mother, she would play a crucial role in guiding and supporting Bulla through this new stage. She could share her own experiences and wisdom with her daughter.
Also, Dr. Briefs, Bulma's father, could be in the story. He might be helping Bulma with any scientific aspects related to her pregnancy, or just being a supportive father figure during this time. And perhaps some of the other Z - Fighters could make appearances and have their own reactions to the news of Bulma's pregnancy.
Definitely include Whis. His knowledge and his ability to train Goku can be a great plot point. Beerus, the God of Destruction, can also be included. His temper and his power can create high - stakes situations in the fanfiction. Additionally, Chi - Chi could be added. Her possessive love for Goku can create conflict when it comes to Bulma's friendship with Goku. And Future Trunks is another character that can bring a sense of mystery and urgency to the story with his knowledge of future events.
One common theme is family bonding. Since they are mother and daughter, many fanfics explore their relationship, like how Bulma guides Bulla through different situations. Another theme could be adventure. They might go on adventures together in the Dragon Ball world, facing new enemies or exploring new planets.
Well, her best friends could be important characters. They could offer support, advice, and sometimes comic relief. For instance, they could be the ones throwing her a surprise baby shower or helping her pick out baby names.