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.
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.
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 great story could be where Santana and Puck are unexpectedly thrown into the situation of raising a baby together. They might face challenges from their families and friends at first, but as they bond over the baby, they start to see each other in a new light. Maybe Santana's fierceness combines with Puck's laid - back nature to create a unique parenting style for their little one.
One great 'glee puck and santana fanfiction' is 'The Unlikely Bond'. It delves deep into their friendship and how it evolves over time. The characterizations are really well - done, staying true to their personalities from the show.
You can try fanfiction websites like FanFiction.net or Archive of Our Own (AO3). These platforms usually have a wide range of fan - created stories, including those about Santana and Puck having a baby. Just use the search function on the site and type in relevant keywords like 'Santana and Puck baby' to find what you're looking for.
You can start by looking on fanfiction.net. It has a large collection of 'glee' fanfictions, and you're likely to find many centered around Puck and Santana there.
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.
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.