Their relationship might become more equal in some ways. As dragons, they are both facing a new and strange existence, so they have to rely on each other more. They might develop a new understanding of each other's strengths and weaknesses.
In this fanfiction scenario, their relationship could take on a different dynamic. Since they are dragons, they may communicate in different ways than as humans. This could lead to some misunderstandings at first, but as they figure it out, it could strengthen their relationship. They might also discover new things about each other that they didn't know before, like certain instincts or abilities that are unique to their dragon forms, which would bring them closer together in a new way.
Well, it could get more intense. They are now in the same boat, literally as dragons. They might become more protective of each other, like two dragons in a pack. And their bond could deepen as they explore their new forms together, facing the challenges that come with being dragons.
It develops gradually. At first, they might be just friends who respect each other's skills. But as they go on more adventures together, they start to notice little things about each other. For example, Hiccup notices how Astrid is always the first to volunteer for dangerous tasks because of her bravery. And Astrid sees how Hiccup's intelligence always gets them out of tough situations.
During the pregnancy, their relationship would shift to be more centered around the upcoming baby. Hiccup would be constantly thinking about how to keep Astrid and the baby safe, especially with his role as a leader. Astrid would be dealing with the physical and emotional changes of pregnancy, and Hiccup would be her main support. This would bring out new aspects of their love for each other, like a deeper level of understanding and patience.
There would be a shift in their dynamic as they prepare for a family. Hiccup, who is used to being adventurous, would have to focus more on home and stability. Astrid, while still strong - willed, would become more nurturing. They would need to find a new balance in their relationship, between their old selves and their new roles as parents - to - be.
The relationship between Hiccup and Astrid during her pregnancy would be a journey of growth. Hiccup would have to be more patient as Astrid's hormones might make her moody at times. Astrid would rely on Hiccup more, which could be a big change for her. They would also start making plans for their family, like where the baby will sleep and how they will raise it. Their love would transform from the passionate love of two young adventurers to a more profound, family - centered love. They might also have some cute moments, like Hiccup talking to the unborn baby at night, which would make Astrid feel even more loved.
Their relationship would likely become more tender. Hiccup would be more protective of Astrid, always making sure she is safe and comfortable. Astrid, on the other hand, might be more reliant on Hiccup during her pregnancy.
In the fanfiction, perhaps there's a moment when Hiccup gets injured while protecting the village. Astrid stays by his side day and night, taking care of him. She reads to him, makes him his favorite food, and in those quiet days, they realize how much they mean to each other. Their love deepens as they share these tender moments.
One interesting plotline could be that as they turn into dragons, they have to quickly learn how to fly and hunt like real dragons. They might face challenges from other dragons who see them as outsiders in their new dragon forms.
It can make their relationship more intimate. Just the physical closeness of being in the same bed can break down some barriers. They might start seeing each other in a different light, more as equals and partners rather than just friends or comrades.
Hiccup would probably be very worried. He'd rush to her side immediately. He might start to check her injuries right away and call for help if needed.
Astrid might initially be in shock. She could just stand there, frozen, unable to believe that Hiccup is really gone. Her eyes wide open and her body trembling as she tries to process what has just happened.