Frieza might initially be shocked. He's used to being a feared and powerful being, and the idea of having a family is very foreign to him. So he could be in denial at first.
One possible storyline could be about Frieza's transformation in character due to impending fatherhood. He might start to question his evil ways and think about creating a better future for his unborn child and his wife. For example, he could try to make peace with some of his enemies for the sake of his family.
For Frieza, the news of the pregnancy could make him more protective. He might start to see the OC in a new light, not just as a subordinate or a conquest. His character could shift from being purely evil to having some redeeming qualities as he anticipates fatherhood.
Perhaps the OC was sent to spy on Frieza but instead falls in love with him. The pregnancy then becomes a complication as their respective races have different views on inter - species relationships. This could create a lot of drama and tension in the fanfiction, with both characters having to fight for their love and the future of their unborn child.
There's also the possibility that it was an accident involving a time - traveling character. Perhaps someone from the future came back in time and accidentally caused Frieza's pregnancy through some unforeseen interaction. This would open up a whole can of worms in terms of time - travel paradoxes and how it affects the future of the 'Dragon Ball' universe.
Well, one possible plot could be about how Frieza deals with the physical and emotional changes. Maybe he has to hide his pregnancy from his enemies as it could be seen as a sign of weakness. He might also struggle with the idea of becoming a parent, considering his usually evil and self - centered nature.
Perhaps in a fanfiction, Frieza encounters a planet where the main female lead is pregnant. He initially plans to destroy the planet as usual, but something about the woman's condition and her determination to protect her unborn child makes him hesitate. This hesitation could lead to a series of events where Frieza's character undergoes some sort of transformation as he gets involved in the affairs related to the pregnant character.
You can try looking on some popular fanfiction websites like FanFiction.net or Archive of Our Own. They have a wide range of fan - created stories, and you might be able to find some frieza - related ones there.
For Yamcha, you can focus on his growth from being a bit of a comical character to a more serious and respected fighter in the context of his relationship with Frieza. Maybe he learns from Frieza's cold and calculating nature how to better strategize in battles. For Frieza, his development could be about him learning to care for someone other than himself. He could start to see Yamcha as an equal, which is a huge shift from his usual superiority complex.
Sure. There are some sakura and frieza fanfictions. They often play with the contrast between Sakura's more earthly and human - like qualities and Frieza's otherworldly and often villainous nature. Some stories might have Sakura trying to reform Frieza, while others could be about them fighting against a common enemy.