The characters' reactions would be diverse. Harry, being the main character, would likely feel a great sense of responsibility. He'd have to face the judgment of both the wizarding community and the vampires. Hermione would be her usual studious self, looking for any precedents or magical knowledge to help. Ron would probably voice his concerns loudly, thinking it's a dangerous and strange situation. The vampire involved would have her own emotions, perhaps a mix of fear and hope for the future. And other vampires in the community could range from being supportive to being hostile depending on their beliefs and positions within the vampire hierarchy.
Harry would probably be in a state of shock and disbelief at first. He'd be filled with a mix of fear, confusion and anger. Voldemort might be initially dismissive or see it as an opportunity to further his own dark plans. Hermione would be practical, trying to find solutions in books and magic. Ron would be more likely to be openly disgusted at first but might come around to support Harry as a friend.
The wizarding community would likely be shocked. Given the long - standing separation between wizards and Muggles, this would be a major deviation from the norm. Some traditionalists might be outraged and demand that Harry be held accountable. However, there would also be those who would be more sympathetic, especially those who have always advocated for better relations between the two worlds.
Well, it's a very strange concept for a fanfiction. If we consider it, perhaps the story would explore the cultural clash between the wizarding world of Harry Potter and the world of vampires. Maybe Harry would have to learn about vampire customs and lore to take care of the pregnant vampire. And the baby? It could be a powerful hybrid with both magical and vampire abilities. However, this would also raise questions about its place in society, whether it would be accepted in Hogwarts or among the vampires.
Dumbledore would likely view it as another sign of Harry's individuality. He would see it as Harry growing up and making his own choices, as long as it doesn't interfere with his destiny. Snape might sneer at it, thinking it's just another Gryffindor folly. But secretly, he might respect Harry's courage to do something different.
Hermione would be very concerned and would immediately start looking for a solution in the library. She'd be flipping through every magical book she could find, trying to figure out what spell or potion could reverse the effect. Ron would be a bit shocked at first but then would try to protect Harry as best he could. He might be a bit clumsy about it, like trying to keep Harry out of trouble in the Gryffindor common room. Dumbledore would likely be calm and observant. He'd probably already have some ideas about what's going on and would be subtly guiding the situation to ensure Harry's safety and the well - being of the wizarding world.
Hermione would probably be very curious and immediately start researching ways to reverse the transformation or at least understand it better. She'd be quite protective of Harry too.
The Cullens, being vampires themselves, would be interested in Harry's origin as a magically - turned vampire. They might want to learn more about his powers and how they could be useful or dangerous. Bella would likely approach Harry with an open mind, given her experiences with the Cullens. The werewolves, on the other hand, would be more territorial and might view Harry as an intruder until they get to know him better. His magic could make them even more on edge as they don't know what it's capable of.
Their friends would be in shock. Ron, being Harry's best friend and Ginny's brother, would be torn between loyalty to both. Hermione would probably be disappointed in Ginny and very supportive of Harry. The Weasley family as a whole would be divided. Mrs. Weasley, who loves Harry like a son, would be heartbroken and angry at Ginny. Their other friends at Hogwarts or in the Order of the Phoenix would likely gossip and have mixed feelings. Some might pity Ginny for the difficult situation she got herself into, but also condemn her for cheating on Harry.
Harry would likely be very protective. He has a strong sense of right and wrong and would do his best to support Daphne. Daphne, on the other hand, would probably be a bit more worried about how society will view her. Their friends might be shocked at first but could come around to support them.
Hermione, on the other hand, would likely have a more critical view. She'd analyze the fanfictions for their accuracy in terms of magic lore and Hogwarts traditions. If there were any inaccuracies, she'd be quite perturbed. However, she might also appreciate the creativity that goes into some of the well - written ones that add new dimensions to their magical world.