Their relationship would transform in many ways. They'd have to start thinking as a unit, not just as individuals. Stiles would become more responsible and Lydia would see a new side of him. She, in turn, would become more vulnerable in front of him, sharing her insecurities about motherhood. There would be a deeper level of trust as they share the journey of pregnancy. They'd also start to plan their future more concretely, which would involve a lot of compromise and understanding, thus changing their relationship dynamics for the better.
Perhaps they find out they're pregnant unexpectedly. Stiles starts making all these plans for their future as a family right away. Lydia is more cautious, thinking about how this will change their lives completely. Their friends could also play a big role, some being super supportive while others might be skeptical. And they could have to deal with family reactions, like Stiles' dad being really excited and Lydia's parents having mixed feelings.
Well, one possibility is that they face challenges in their relationship due to the unexpected pregnancy. Maybe their families have different reactions, some supportive and some not. This could lead to them having to make tough decisions about their future together and how to raise the baby.
One great 'lydia and stiles fanfiction' is 'The Unseen Bond'. It beautifully explores their relationship with a touch of mystery. Another is 'Lydia and Stiles: A New Beginning' which takes their story in a really heartwarming direction. And 'Mystic Connections' is also good as it delves deep into their emotional connection.
I really like 'The Unexpected Love'. In this fanfiction, Stiles and Lydia start off as friends but gradually realize their deeper feelings. It has some really sweet moments that will make you smile. Then there's 'Love Beyond the Shadows' which focuses on how they deal with the supernatural elements while falling in love. Also, 'The Red Thread of Fate' is a great read. It's based on the concept that Stiles and Lydia are fated to be together and shows how that fate plays out in their lives.
There's a fanfic called 'Stiles and Lydia: A New Beginning'. In this story, they start anew in a different town away from all the chaos. It's really refreshing to see them build a normal life together while still having that underlying supernatural connection. Also, 'Lydia's Choice' is good. It focuses on Lydia having to make some tough decisions regarding her relationship with Stiles and how it affects their future together.
Fanfiction.net is also a good place to look for Stiles and Lydia fanfiction. There are many authors who post their works there. However, the interface might be a bit old - fashioned compared to AO3. But it still has a lot of great stories if you are willing to search through the categories. You can start by looking in the Teen Wolf section and then narrow it down to stories specifically about Stiles and Lydia.
There's also 'Kiss in the Moonlight' which has a really romantic setting for their kiss. The story uses the night - time and the moon as a backdrop to enhance the mood of their relationship development and the kiss itself. It's quite popular among fans.
The theme of redemption can also be found in some 'dark stiles and lydia fanfiction'. Maybe one of them has made a mistake or has been involved in something bad in the past, and they are trying to make up for it. This makes their characters more complex and the relationship more interesting as they grow and change together while dealing with the dark elements in the story.
Well, self - discovery is also a theme. As Lydia discovers more about her powers as a banshee and Stiles figures out his place in the supernatural world, their relationship evolves. And of course, there's the theme of loyalty. They are often shown to be very loyal to each other, standing by one another through tough times, whether it's dealing with a new evil in town or personal issues within their relationship.