One common theme is family. It focuses on how Peeta and Katniss create a family unit in the harsh world they live in. Another theme could be hope. Their having a baby represents new life and a chance for a better future. Also, love is a big theme. It shows how their relationship evolves into a more mature love with the addition of a child.
The fanfiction could revolve around their journey of preparing for the baby. Peeta, being the sweet guy he is, would probably start baking all kinds of healthy treats for Katniss during her pregnancy. Katniss, on the other hand, might use her hunting skills in a more modern way, like teaching survival skills to kids in their neighborhood to earn some extra money for the baby's needs. And as they get closer to the due date, they could have a big argument about where the baby should be born, whether at a high - tech hospital or at a more natural birthing center.
Their relationship would become even more protective. Peeta would be constantly looking out for Katniss and the unborn baby. Katniss would rely on Peeta more, especially during the difficult days of pregnancy like when she's feeling sick.
Gale might initially feel a bit of jealousy and sadness, but he would ultimately be happy for them. He would probably offer his support in a more practical way, like helping with hunting to ensure they have enough food for the new family.
Their relationship would likely become more protective. Peeta, with his kind heart, would be constantly worried about Katniss and the baby. He would probably be more affectionate and try to do everything he can to make her comfortable. Katniss, on the other hand, might initially struggle with the idea of being vulnerable, but would gradually let Peeta in more as she realizes she needs his support during the pregnancy.
One possible plot twist could be that the pregnancy is a result of some Capitol - engineered experiment. Maybe they were secretly given a fertility - enhancing drug during their time in the Games. This would add a whole new layer of danger and mystery to the story as they try to figure out what the Capitol's motives are and how to protect their unborn child.
Well, it depends on the specific fanfiction community. Some groups might be really into it because it gives a chance to explore their relationship in a more domestic and complex way. But others might not like it as much, thinking it goes too far from the original Hunger Games concept. In general, though, there are always fans who are attracted to this kind of plot twist.
It can make Katniss seem more vulnerable. Usually, she is seen as a strong and independent character. But in a high school pregnant situation, she might have to face new challenges that show her softer side. For Peeta, it could strengthen his role as a supportive partner.
Perhaps the father is a new character introduced in the fanfiction. A rebel from a far - off place who came to her district and they fell in love at first sight. He could be on a mission related to overthrowing the remaining oppressive forces in the post - Hunger Games world and their love and her pregnancy add a new dimension to his mission.
One possible plot could be that the daughter faces challenges in a post - Hunger Games world. Maybe she has to deal with how society views her pregnancy. She could struggle with the fear of not being able to protect her unborn child like Katniss protected her in the Games. And perhaps she has to face some political or social opposition because of her situation.