I'm not entirely sure specifically about 'santana pregnant fanfiction'. However, many fanfiction communities are vast. It could depend on the fandom Santana is from. If it's a popular one, there's a good chance someone has written a story with that concept. You could also check related fan forums where fans might discuss or share such fanfictions.
Another possibility is that there's some confusion at first. Maybe a false positive pregnancy test leads to a rollercoaster of emotions for them. They could start planning for a baby only to find out later it was a mistake, but this experience could bring them closer as a couple.
Brittany would probably be over the moon. She's such a positive and loving person, and she'd be so excited for Santana. She might start knitting baby blankets right away.
One possible fanfiction could be about Santana's journey through pregnancy while still being part of the Glee club. Maybe she has to deal with the reactions of her friends and family. Some might be overjoyed, while others could be worried about how it will affect her singing and her place in the club.
Another theme might be her own internal struggle. If Santana is a strong - willed character, she may have to deal with the conflict between her own goals and the new situation of being pregnant. She could be worried about how it will affect her future, her career (if applicable in the story's context), and her identity. Also, the relationship with the baby's father would be a big theme. Whether they are in a loving relationship or it's a more complicated situation, it would add a lot of drama to the fanfiction.
The plot could involve Santana hiding her pregnancy at first from most of the Glee club members. She's afraid of the judgment and how it might change things. But as her pregnancy progresses, it becomes harder to hide. Her friends start to notice the changes in her behavior and body. Eventually, she has to come clean, and they all rally around her to support her through the pregnancy.
Finding that exact fanfiction can be a bit of a challenge. You could start by looking at the tags related to the characters Puck and Santana on fanfiction platforms. Also, reaching out to other fans of the show they are from might give you some leads on where to find such a story.
Fanfiction.net is another place to look. There are many Glee - related fanfictions on this site. You may need to dig a bit deeper by browsing through the Glee section and then looking for stories specifically about Santana and Puck's pregnancy. Some authors might tag their stories in a way that makes it easy to find, like 'Santana x Puck pregnancy' or something similar.
One popular 'Santana and Puck pregnant' fanfiction might be 'A New Beginning'. It explores how Santana and Puck deal with the unexpected pregnancy, their relationship changes, and how they face their friends and family. It delves into their emotions like fear, excitement, and the determination to make it work. The story also shows how their friends, like the Glee Club members, react to the news and offer their support or face some internal conflicts about it.
One plot idea could be that they are unexpectedly pregnant and have to deal with the reactions of their families and friends. Maybe they initially struggle with the idea but then come to terms with it and support each other through the pregnancy.