The popularity of 'gravitation yuki x shuichi fanfiction' lies in the complex relationship between Yuki and Shuichi. Their personalities are so different, yet they complement each other in many ways.
There's also 'Yuki and Shuichi: A New Chapter'. This fanfiction takes an interesting turn by placing them in a different setting, like a small town away from their usual city life. It gives a fresh perspective on their relationship.
You can try searching on fanfiction websites like Archive of Our Own (AO3) or FanFiction.net. These platforms usually have a wide range of fanfictions, and you might be able to find the Gravitation Shinjin x Yuki fanfiction there.
The theme of support is very prevalent. They support each other's dreams and goals in many fanfictions. Whether it's Yuki encouraging Shuichi's artistic pursuits or Shuichi being there for Yuki during tough times. Additionally, the theme of discovery - both of themselves and of their relationship - is often a part of these stories. It's like they are on a journey of self - discovery while also falling in love with each other.
The unique relationship between Shinjin and Yuki can be a big draw. Their personalities, if well - written in the fanfiction, can create interesting dynamics. For example, if Shinjin is portrayed as a mysterious character and Yuki as a more outgoing one, their interactions can be full of surprises.
In the context of Gravitation, if there were such fanfiction, perhaps themes related to how Shuichi's career as a singer might be affected by the pregnancy could be explored. Also, the support or lack thereof from his friends and family in the story's universe could be a theme. Another aspect could be how his partner (if applicable in the fanfiction) copes with the situation and their joint future planning.
I'm sorry, I'm not aware of specific 'gravitation shuichi pregnant' fanfiction. You can try searching on fanfiction - specific websites like Archive of Our Own or FanFiction.net.
One popular yuki x shuichi fanfiction is 'A Bond Beyond Words'. It beautifully portrays their relationship development. The story focuses on how they support each other through various challenges. Another great one is 'Shared Moments' which has some really heart - warming scenes between them.
I'm sorry, I don't have specific yuki x shuichi yaoi fanfiction to recommend directly. But you can try searching on some fanfiction websites like Archive of Our Own (AO3). They usually have a wide range of fanfictions including this pairing.