One great fanfiction about Puck and Rachel being pregnant in Glee could be 'A New Beginning'. It focuses on how they deal with the unexpected pregnancy and the reactions from their friends and families. They face challenges like school and their future dreams, but also find a new level of closeness through it all.
One possible fanfiction could be about how Rachel deals with her pregnancy while still trying to pursue her dreams in the Glee club. Maybe she has to balance rehearsals and performances with doctor appointments and the physical changes she's going through.
I'm not entirely sure if there is a specific fanfiction with exactly that plot. 'Glee' has a large fanfiction community, and they come up with all sorts of ideas. It's possible that someone has written a story where Rachel is pregnant by Mr. Schuester, but it also might not exist. You could try searching on fanfiction websites to find out for sure.
Another option could be Jesse. Their relationship was also quite intense. Jesse has his own ambitions in the world of performing arts, and a pregnancy with Rachel would create a huge conflict for him. He might be torn between his love for Rachel and his career goals, and this could lead to some really dramatic storylines in the fanfiction.
The main characters are Rachel and Finn. Rachel is a very ambitious and talented singer in the Glee club, always striving for the spotlight. Finn, on the other hand, is a popular football player who also has a passion for singing in the Glee club.
Another option could be Puck. They had a bit of a history in the show. In the fanfiction, they could have reconnected in a moment of passion and now she's pregnant. This would surely stir up a lot of emotions among the other Glee club members, especially those who were close to both of them.
The plot might involve a twist where Rachel discovers she's pregnant, but she's not sure if Mike is the father. This creates a lot of internal conflict for her. She doesn't want to tell Mike right away until she's certain. Meanwhile, Mike starts noticing that Rachel is acting strange and becomes worried. As the story unfolds, they have to face the truth together and decide what to do about the pregnancy, whether they stay together or not depending on the paternity results.
A theme could be friendship. How her friends in the Glee club support her during her pregnancy. They could help her with schoolwork when she's feeling tired, or be there for her during emotional moments.
One popular plot could be how Rachel deals with her pregnancy while still pursuing her dreams in the performing arts world. Maybe she has to balance rehearsals and doctor appointments. Another plot might involve the reactions of her friends and family. Some fanfictions could show Finn's reaction if it's set in a time when they were together.
Mr. Schuester might be included as well. As the teacher and mentor in the Glee club, he could offer guidance to Rachel during this difficult time. He might help her figure out how to balance school, the Glee club, and her pregnancy. Additionally, Mercedes could be a character involved, providing her best - friend - like support to Rachel, and being there for her through all the emotional ups and downs.