Love and family are very common themes. Since Jane is pregnant, it explores how Thor and Jane's relationship deepens as they are about to become a family. It also often shows Thor's protectiveness towards Jane and the unborn child.
There is also 'Jane's Pregnancy Journey with Thor'. In this fanfiction, it focuses a lot on Jane's perspective during her pregnancy. It shows her relationship with Thor evolving as they prepare for the arrival of their child, and how she copes with the changes in her life, both on Earth and in relation to Asgard.
Sure, Jane Thor is in the comics. Her character brought a fresh perspective and showed that anyone could be worthy of the Thor's power and responsibility.
One idea could be exploring how they adjust to the news. Maybe Thor is overly protective and Jane has to keep her scientific work going. They could face challenges from Asgardians who are skeptical about a human - Asgardian pregnancy.
It would likely strengthen their relationship. The shared experience of having a child would bring them closer together. They would have to rely on each other more, and Thor would become more protective of Jane.
Well, one plot twist could be that Thor has to return to Asgard suddenly for some emergency, leaving Jane alone on Earth while pregnant. This would create a lot of emotional turmoil for her as she has to deal with the pregnancy without him.
Love is a very common theme. Their relationship, whether it's the budding of their love or the challenges they face as a couple. Another theme is adventure, as they often go on quests together. And power, like how Thor's godly powers interact with Jane's scientific knowledge.
Love is a very common theme. Since their relationship is central in the movies, fanfictions often expand on their love story, exploring how it deepens and overcomes obstacles.