One possible plot could be Leah dealing with the reactions of her pack. Some might be supportive, while others could be judgmental at first. She'd have to navigate her changing body and the new responsibilities that come with expecting a baby.
I'm not sure specifically which 'leah pregnant fanfic' stories are out there. You could try searching on fanfiction platforms like Archive of Our Own. They have a large collection of fan - created stories and might have some related to this topic.
It could be another werewolf from her pack. Maybe someone she had a secret relationship with, like Seth's friend who had always been secretly in love with Leah but was too shy to admit it before.
A plot idea could be that Sam discovers Leah is pregnant during a difficult time for their relationship. This news could either bring them closer or cause more friction. For instance, if they were on the verge of a break - up, the pregnancy might make them re - evaluate their feelings and decide to stay together for the sake of the baby.
There are many ways to write a Sam and Leah pregnant fanfiction. Maybe it could start with a magical or supernatural element that causes the pregnancy. The story could then focus on how they adapt to the changes in their lives. It could include details like Leah's pregnancy cravings and Sam's attempts to fulfill them, while also dealing with any external threats or issues that come their way.
Another theme could be the challenges Leah faces during her pregnancy. This might include dealing with her own fears, the reactions of family and friends, or any potential complications. In some fanfictions, there might be a focus on how the pregnancy changes Leah's relationships, either strengthening some bonds or creating new tensions. It can also show her growth as a character as she prepares to become a mother.
Often, their relationship becomes more complex. They might start off as just friends or comrades, but the pregnancy forces them to become closer, more like a family.
The plot might involve Leah finding out she's pregnant and then trying to figure out who the father is. If it's in the context of the Twilight universe, there could be added complications like how the werewolf nature affects the pregnancy and the unborn child. She could also be worried about the safety of her baby considering the various supernatural threats in that world.
In Twilight, the concept of male imprinting is a unique and interesting one. If we consider a fanfiction where Leah is pregnant in this context, it could lead to a whole new set of storylines. Maybe the male who imprints on Leah would have a very different reaction to her pregnancy compared to how other characters might. It could be a story of unexpected love and new beginnings, as the imprint often brings a strong connection between the two characters.