A fanfiction about Tristan and Yvaine being pregnant could be really heartwarming. It could depict their daily lives during the pregnancy. Tristan could be seen taking care of Yvaine, making sure she has everything she needs. Yvaine might start to glow even more with the life growing inside her. The story could also involve some prophecies or signs related to their unborn child. For example, the stars might align in a special way or an old seer could predict that their child will bring great change to the land of Stardust. This would add an element of mystery and anticipation to the fanfiction.
There could be a fanfiction where Tristan and Yvaine are expecting a child. It might explore how they adjust to the idea of becoming parents. Tristan, being the adventurous type, might initially be a bit nervous but then embrace the role. Yvaine, with her celestial nature, could bring a sense of magic to the whole process of pregnancy. Maybe they would have to face challenges from the magical world around them, like protecting their unborn child from dark forces that might want to use the baby's power for their own gain.
In a Tristan and Yvaine pregnant fanfiction, it could start with the moment they discover they are going to have a baby. Their reactions would be quite interesting. Tristan might be overjoyed and start planning for the future right away. Yvaine, on the other hand, could be more in tune with the spiritual side of it. She might feel a deeper connection to the stars during her pregnancy. The story could also show how their friends and the magical creatures in their world react to the news. Some might be excited and offer help, while others could be jealous or worried about how the new addition will change things.