One challenge could be the lack of resources. Their world is often harsh, and getting enough food, medical supplies for the pregnancy and for the baby later would be difficult.
In some versions of this fanfiction, Peeta could be a bit worried. Given the dangerous world they live in, he might be concerned about the safety of Katniss during the pregnancy and the future of the child. He could start making arrangements to ensure they have enough resources and protection, while also expressing his love and support for Katniss.
Katniss might become more open and less guarded. With Peeta by her side, she could start to trust more easily. Peeta, on the other hand, might become more assertive in protecting Katniss and their new family. His gentle nature could still be there, but he'd have a newfound determination.
They would become more united as they have a new life to protect. Their focus would shift from just each other to their baby, and they would work together even more closely.
Common themes in Katniss and Peeta fanfictions include their emotional journey. In the books, they went through so much, and fanfics take that further. They might explore how Peeta deals with his hijacked mind and Katniss' guilt over the whole situation. Another theme is friendship - turned - love. Their relationship started as a strategic alliance in the Games, and fanfics often look at how that evolved into true love. And there's also the theme of sacrifice. Both of them were willing to sacrifice for each other in the books, and fanfics play around with different scenarios of sacrifice in their relationship.
Peeta and Katniss' love in the fanfiction is also influenced by their different personalities. Peeta is kind - hearted and more open with his emotions, while Katniss is more guarded. His openness gradually breaks down her walls. They learn to understand and accept each other's flaws. For instance, Katniss comes to appreciate Peeta's loyalty and self - sacrifice as they face the challenges together in the story.
They might have some disagreements, like how to raise the child. Katniss, who has grown up in a tough environment, might have different ideas compared to Peeta. But these differences would also help them understand each other better. They would communicate more and work through their issues together, making their relationship more solid.
Perhaps it's a means of strengthening their bond. By sharing a story, Katniss is letting Peeta into her world, sharing a part of herself that might make them closer and more of a team. This can be crucial for their survival in the Games as they need to trust each other.