I'm not entirely sure as 'birth alone fanfic' could refer to a variety of things. It might be a fan - created story related to a character or situation where someone gives birth alone. It could be part of a specific fandom's exploration of a particular plotline, perhaps in a TV show or book where a character has a solitary birth experience.
As of now, it's difficult to say if there are popular 'birth alone fanfic' stories. Fanfic popularity can be very subjective and often depends on the specific interests of the fans in a given fandom. While the idea of a 'birth alone fanfic' is interesting, it may not have reached the level of popularity where there are well - known, commonly - shared examples across different fandoms. It could be that these types of stories are more likely to be found and cherished within smaller, more specialized groups of fans.
One possible scenario could be that Clary is in a situation where she has no one around due to some unforeseen circumstances like being stranded in an isolated place. Another could be that she chooses to be alone because she doesn't want others to see her in a vulnerable state during childbirth.
Maybe Simon. If the fanfic takes an alternate path where Clary and Simon end up in a romantic relationship, he could be the father. However, he might be away or unable to be with her when she gives birth.
Snape would probably use his knowledge of potions. He might have brewed a special pain - relieving potion in advance. He would also use his Occlumency skills to try and block out some of the pain mentally. Since he is a strong - willed character, he would grit his teeth and endure it as best he could while focusing on the task at hand, which is giving birth safely.
One possible plot could be that Snape discovers he has a unique magical ability that allows him to carry a child. He might keep it a secret from everyone in Hogwarts due to fear of ridicule. As he nears the time of giving birth, he would have to find a secluded place within the castle or in the Forbidden Forest. He would endure the pain alone, using his own potions and magic to ease the process as much as possible.
One possibility is that in the fanfiction, she might be in a situation where she has cut herself off from her friends for some noble reason. Maybe she wants to protect them from some dark magic that she believes will target her during childbirth. Another reason could be that she's on a secret mission and has no choice but to be alone when she gives birth.
There would be a sense of loneliness. Hermione is used to having friends around, and in this situation, she has to face this life - changing event all by herself. She might also feel a sense of regret, thinking about how things could have been different if she had made different choices.
It could be that the father is an unknown wizard who Harry had a brief encounter with. Maybe it was a one - time magical connection that led to the pregnancy.
A prevalent theme in this type of fanfiction could be survival. The woman giving birth alone has to figure out how to deal with the medical aspects as well as keep herself and the baby safe. There could also be a theme of unexpected help, like a mysterious figure showing up at the last moment to assist, which adds an element of surprise and hope to the story.