The plot of 'orochimaru and wife pregnant' fanfiction could be really diverse. It might start with how they got to the point of having a baby. Was it an accident or a planned thing? Then, there could be a lot of drama regarding Orochimaru's reputation in the ninja world affecting their family life. The pregnancy could also be a catalyst for Orochimaru to re - evaluate his life goals. Maybe he starts to think about creating a better world for his child instead of just seeking power for himself. There could be elements of mystery if there are some unknown forces interested in the unborn child, and the story could be about Orochimaru and his wife protecting their family.
In such a fanfiction, the plot might revolve around the challenges of their relationship. Since Orochimaru has a dark past, his wife may struggle to trust him completely during the pregnancy. There could be a sub - plot about protecting the unborn child from Orochimaru's former allies or foes who might see the child as a tool or a threat. Also, it could show Orochimaru's transformation from a self - centered character to a more family - oriented one.
Well, one could expect a lot of character development for Orochimaru. Maybe he has to face his new role as a soon - to - be - father and deal with his past self that was more focused on power and experimentation. The plot could also involve how his wife copes with the pregnancy, perhaps facing some threats related to Orochimaru's enemies.