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.
One possible scenario in a Rachel and Mike pregnancy fanfiction could be that they accidentally find out they're having a baby while they are both focused on their Broadway careers. Maybe they initially panic, but then gradually come to terms with the idea as they realize they can support each other. They might start making plans for their future as a family, including how they will balance their work and family life.
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.
One possible fanfiction could be where Mike and Rachel's pregnancy is a surprise to them. They might initially be scared but then slowly embrace the idea. They could start planning for the baby's future, with Mike being worried about his past affecting their child but Rachel reassuring him.
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.
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.