There's 'The Unlikely Friendship'. In this fanfiction, the OC is a journalist intern. Nate and the OC start off as acquaintances but end up having a deep friendship. It delves into Nate's character more deeply as he opens up to someone outside of his usual social circle. It's a great read for those who want to see different sides of Nate.
Archive of Our Own (AO3) is a great place to start. It has a large collection of fanfictions, including many about Nate Archibald with original characters. You can search using relevant tags like 'Nate Archibald' and 'OC' to narrow down your results.
One popular Blair Waldorf pregnant fanfic might be 'A New Chapter for Blair'. It could explore how her pregnancy changes her relationships within the Upper East Side clique. Another could be 'Blair's Maternity Journey' which might focus on her personal growth during pregnancy.
Chuck Bass could be a likely candidate as they have a long and complicated relationship in the show. Their on - again, off - again dynamic would add a lot of drama to the story if he were the father.
You can try fanfic websites like Archive of Our Own (AO3). It has a large collection of fanfics from various fandoms, and there's a good chance you'll find Blair Waldorf pregnant fanfics there.
Some of the top Blair and Nate fanfictions include 'Lost Love Found'. In this story, they accidentally cross paths in Paris and start to rekindle their relationship. It's full of romantic moments and descriptions of the Parisian scenery. 'Second Chances' is also a great one. It gives them a second chance at love, but they have to deal with their families' interference. 'The Blair - Nate Chronicles' is a series of short stories that explore different aspects of their relationship, from their first kiss to their break - ups and possible reconciliations.
One great Nate and Blair fanfiction is 'The Reunion'. It beautifully captures their complex relationship. It shows how they still have feelings for each other even after all the drama in the show. Another good one is 'Nate and Blair's Second Chance' which explores what would happen if they got a fresh start.
Perhaps Blair is on a trip to Orange County and runs into Seth. Seth shows her around his hometown, introducing her to his friends and the local culture. Blair, used to the glitz and glamour of New York, is initially skeptical but then starts to enjoy the simplicity. Meanwhile, Seth is fascinated by Blair's confidence and sophistication. Their relationship could develop from there, with them facing challenges from their different worlds but also finding strength in their differences.
A Blair Waldorf and Seth Cohen fanfic could be really interesting. Maybe it could be set in a shared universe where the Upper East Side meets Orange County. They might initially clash due to their different backgrounds, Blair with her high - society ways and Seth with his more laid - back, arty Orange County vibe. But then they could find common ground in their love for art or fashion, and start to form an unexpected friendship or even more.
Well, a plot could revolve around Blair being pregnant and deciding to focus on herself and her unborn child instead of getting caught up in the usual power plays. She could start to re - evaluate her relationships, like with Serena, and they could either grow closer as Serena supports her through the pregnancy or have some conflicts as their lives start to take different paths.