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.
Maybe there's a new threat in the form of a political faction that wants to undermine their relationship. They try to spread rumors that the baby isn't Peeta's or that Katniss is using him for power. This forces Katniss and Peeta to fight not only for their family but also for their reputations in the district.
She might get angry. Katniss has a fiery side, and seeing Peeta with another girl could trigger that. She could give Peeta the cold shoulder and refuse to talk to him.
One possible scenario in the fanfiction could be that Katniss and Peeta's baby becomes a symbol of hope in the districts. The baby might grow up with unique skills inherited from its parents. For example, having Katniss's archery skills in a more developed way in the future. It could also be that the baby's existence is a threat to the Capitol, so they have to keep it hidden and protected at all costs.