If it's a fanfic set in a particular fictional universe, there could be other characters related to that world. For example, if it's a fantasy setting, there might be magical healers or wise women who assist Ana during the birth process.
Obviously, Ana herself would be the central character. Her partner could be an important character too, being there for her during the pregnancy and birth. Maybe her mother or a close female friend who offers advice and support.
The fanfic might focus on the actual birth. It could describe the setting, whether it's in a hospital or at home. And also the people around her during the birth, such as a midwife or her partner. There could be some tense moments and then the joy of the new life arriving.
It could be a mortal man who somehow managed to catch Artemis's eye. Maybe he was a great hunter like her, and their brief encounter led to the pregnancy.
There's also the possibility that it's an unknown stallion from a far - off land. Twilight could have had an adventure in a different region and met someone there. This would add an element of mystery to the fanfic, as the readers would be curious to learn more about the father's background and how he and Twilight met.
It could be a mysterious and powerful wizard. He might have used his magic to be with Ciel in a way that led to the pregnancy. His powers and knowledge could play an important role in the story, perhaps he has to use his magic to protect Ciel during the pregnancy.
The most obvious choice would be Percy Jackson. Given their long - standing relationship in the original series, it makes sense that he would be the father. Their relationship has been through so much, and having a child together would be a new chapter in their story.
Obviously, Prowl would be the main character. There could also be her partner, if she has one. Maybe a friend or a family member like her mother or sister if that applies in the story's context.
The Cullen family members are also key. Carlisle, as the patriarch of the vampire family, would be involved in the medical aspects of Bella's pregnancy and birth. Esme, with her motherly nature, would be there to support Bella. Alice, with her ability to see the future, could be crucial in predicting any problems during the birth. Jasper, too, would be part of the family's support system, even if his power of influencing emotions might not be directly related to the birth.
Obviously, Clary herself is the most important character as she's the one giving birth. Her partner would also be crucial, providing support and sharing the joy of the new arrival.
In addition to Bella, her family members are likely to be part of the story. Her mother could be a source of both wisdom and worry, while her father might be more reserved in his reactions. There could be a neighbor who has had children of her own and offers Bella some much - needed advice. And don't forget about the baby! Even though it's just been born, it can be a character in its own right, with its own needs and presence that affects the story.
Aphmau herself is obviously a main character. Aaron is often another important character as he is her significant other in the Aphmau series. He would be there to support Aphmau during the birth process. Also, her friends like Katelyn and Kawaii - chan might be present, offering their own unique forms of help and adding to the story's charm.