I'm not sure if there is specifically a Takaba Akihito pregnant fanfic. Fanfics can cover a wide variety of themes and scenarios, but it might be a rather niche or less common one. You could try searching on fanfic platforms like Archive of Our Own or Fanfiction.net, but there's no guarantee you'll find one.
One characteristic is the in - depth portrayal of their personalities. In these fanfics, the authors usually bring out the unique traits of Asami and Takaba. For instance, Asami's strength and Takaba's determination. Also, many 'Asami y Takaba fanfic' will create some interesting plot twists around their relationship, like misunderstandings that they have to overcome. Another aspect is the vivid description of the settings where their story unfolds, whether it's a bustling city or a quiet countryside.
Love is also a prevalent theme. Whether it's a budding romance or a deep, long - standing love, it often plays a role in Asami Takaba fanfics. It can be a sweet and tender love story that showcases a different side of Asami Takaba and his emotions.