What could be the possible scenarios in a Doctor Who fanfiction where the 13th Doctor is pregnant?

They could meet during a time-traveling adventure gone wrong, getting stranded in the same era.

Well, Jack might meet the 11th Doctor when there's a threat to the space-time continuum that requires their combined efforts to fix. Or it could be a chance encounter at a pivotal moment in history.

It's possible that Jack meets the 10th Doctor when they are both drawn to a mysterious energy source. Another scenario could be when they are brought together by a common enemy with a devious plan.

They might have a friendly competition. For example, who can solve a time - related mystery faster.

Yes, there are. Fanfiction writers have explored this concept. But the quality and style of these stories can vary greatly. You could try using specific search terms and filters on fanfiction platforms to narrow down your search.

They could also meet in a time - locked situation. The 12th Doctor is trying to solve a mystery from his past, and the 13th Doctor stumbles upon the same situation in her present. At first, they don't understand how they are both involved, but as they start to piece things together, they discover that it's all part of a much larger, more sinister plot. Along the way, they might meet some old friends or foes from their respective tenures as the Doctor. And in the end, they work together to outwit the mastermind behind the plot, all while having some really interesting conversations about their experiences as the Doctor.

In the fanfiction, the 11th doctor, with his eccentric and energetic personality, could initially be a bit confused by the 13th doctor's more modern approach. But then they could start to combine their wits. For example, the 11th doctor's knowledge of ancient alien races could be paired with the 13th doctor's understanding of current galactic politics. They could work together to save a planet that is on the brink of destruction due to a complex web of time - related issues. The encounter could also lead to some humorous moments, like when they argue about who has the better sonic screwdriver or who has had the more exciting adventures.

One possible plot twist could be that they find out they are both parts of a larger plan by an unknown enemy. Maybe an ancient force has been manipulating their timelines to bring them together for some sinister purpose.

One possible plotline is that they meet in a time - locked situation. They have to work together to break the time lock. Another could be that they meet because of a shared enemy that has somehow found a way to target both of their timelines. They would then have to put aside their differences and use their individual strengths to defeat the enemy.

In this fanfiction, the 12th Doctor might face all kinds of adventures and challenges while being kidnapped. It could involve his companions trying to rescue him and uncovering a big conspiracy.