Family could be a major theme. With the new pregnancy, they are starting a family, and it could explore the meaning of family in their context. Another theme could be hope. The baby represents new life and a new beginning, so hope for a better future could be woven into the story.
Love and sacrifice are likely themes. Doc and Wynonna will surely have to make sacrifices for the baby and each other. Their love will be tested and strengthened through this new experience. Also, the theme of protection. They live in a dangerous world, and protecting the unborn child will be crucial. This could lead to many action - packed and emotional scenes in the fanfic.
The theme of change could be prominent. A new baby will change their lives completely. They will have to adapt to new roles, new responsibilities. It could also touch on the theme of fear, as they may be afraid of losing the baby or not being good parents, given their complex and often dangerous lives.
It could be about the challenges they face this time around. Maybe they're more worried about the baby's future in their dangerous world. For example, they might be concerned about protecting the child from the various threats that lurk in their environment. Also, it could explore how their relationship changes with the new pregnancy. Are they more in love? Or does the stress put a strain on their relationship?
It would change in many ways. They'd have to communicate more effectively as they make decisions for the future of their family. Their relationship might also face some strains as they adjust to the new responsibilities. For example, Wynonna might be worried about how her role as a protector of Purgatory would be affected, and Doc would be trying to balance his past and his new role as a soon - to - be father. But overall, the love and bond between them would likely grow deeper as they face these challenges together.
One plot idea could be the challenges they face in a world full of supernatural threats while being pregnant. They'd have to be extra cautious not only for their own sakes but also for the unborn child. Another could be how the other characters in the Wynonna Earp universe react to the news. Some might be overjoyed and offer protection, while others might see it as a weakness to be exploited by their enemies.
One idea could be that they face a supernatural threat during the pregnancy. Maybe there's a demon that wants to harm the unborn child because it senses its special powers. So, they have to fight off this demon while also dealing with the normal pregnancy stuff like doctor visits and preparing a nursery.
Adventure is also quite common. Wynonna and Waverly are often involved in supernatural battles in the show. Fanfics take this further by sending them on new adventures together. These adventures not only test their physical strength but also strengthen their emotional bond as they rely on each other to survive and succeed.
It would likely make their relationship more intense. Doc would become even more protective of Wynonna, always on guard to keep her and the unborn baby safe. Wynonna, on the other hand, might struggle with feeling a bit more vulnerable, which could cause some friction between them at first as she's used to being the tough one.
A possible theme could be identity. Mulan has always had a complex identity, being a woman who took on a man's role in the military. Now, with pregnancy, she may struggle with how this new aspect of her life fits in with her existing identity. It could also touch on themes of support, as she would need the help of her family and friends during this time.
There are quite a few Wynonna Earp pregnant fanfictions out there. You can start by looking on popular fanfiction websites like Archive of Our Own. Some fanfictions might explore how Wynonna's character deals with pregnancy while still facing the challenges of the supernatural world she lives in.
Another plot twist might be that Sasuke discovers a hidden enemy who is targeting their unborn child. This could lead to Sasuke having to go on a dangerous mission while Sakura is pregnant to protect their family. It would add a lot of tension to the story as Sakura is left at home worried about him.
It could be her existing partner from the original story. For example, if it's a story where she's in a relationship with Edward, then he would be the likely father.