Another plot could be that Rogue is scared about how her powers might affect the baby. Logan, with his own experiences of being different, comforts her. They could seek help from Professor Xavier who tries to find a way to suppress Rogue's powers temporarily during the pregnancy to ensure the baby's safety.
One idea could be that Logan is initially shocked but then becomes extremely protective. He starts preparing a safe haven for Rogue and their unborn child, like fixing up an old cabin in the woods. He gathers supplies and makes sure no one can harm them.
Maybe Rogue discovers she's pregnant during a time when the X - Men are facing a big threat. This adds an extra layer of tension as they not only have to deal with the external danger but also ensure Rogue's pregnancy goes smoothly. Logan might have to make some tough choices between protecting Rogue and fighting the enemy.
One plot idea could be that Rogue and Logan discover their baby has a unique mutant ability that they need to protect from a group that wants to use it for evil. Another could be the baby getting lost in a dangerous mutant - friendly area and Rogue and Logan have to search for it while facing various challenges along the way. And a third idea might be that the baby is sick and they have to find a cure, which leads them to explore different parts of the mutant world they've never been to before.
Well, perhaps in the fanfiction, Logan could be really over - protective of Veronica during the pregnancy. He might hire a whole team of security for her. And Veronica, being the independent person she is, might struggle with this at first. Also, they could have a storyline where they start preparing the nursery and they have different tastes in decoration. Logan wants something super luxurious while Veronica wants a more practical and simple design.
The Brotherhood of Mutants could also be antagonists. They might view the pregnancy as a sign of the X - Men becoming too domesticated and vulnerable. They could launch attacks on the X - Mansion in an attempt to disrupt Rogue and Logan's new - found family situation.
Another plot could be that they face some opposition from their families. But they stand together and fight for their relationship and the upcoming baby. They could also learn a lot about each other's values and priorities through this experience which will strengthen their bond.
Some dedicated X - Men fanfiction forums might also be a good source. There are often users sharing and discussing their own works or ones they've found. However, these forums may require you to register before you can access all the content.
A great plot could be that a new threat emerges that targets both magic - users and mutants. Harry and Logan are brought together by a mutual acquaintance who believes that their combined abilities are the key to stopping this threat. Along the way, they learn from each other's worlds, with Harry teaching Logan about magic spells for protection and Logan showing Harry some of his survival and combat techniques.
One popular 'rogue logan pregnant fanfiction' might be 'The Unforeseen Bond'. It delves into how their relationship changes with the pregnancy. Another could be 'A New Beginning for Rogue and Logan' which focuses on the challenges they face together.
One idea could be that Rogue discovers Lucy is pregnant and is initially in shock but then becomes extremely protective. He might start learning about how to take care of a pregnant woman and the coming baby. For example, he could read books on pregnancy and baby care in secret.
One plot idea could be that Camille and Logan are in a relationship that's been on and off. When they find out about the pregnancy, they initially panic. Logan might be worried about his career and Camille could be scared about how they'll handle it as a couple. They then start to slowly come to terms with it, going to doctor appointments together and starting to plan for the baby's future.
One plot idea could be that Princess and Logan are forced to team up to save Albion from a new, unseen threat. Maybe a dark magic has started to corrupt the land and they have to put aside their differences. They start off distrusting each other but as they face challenges together, they begin to understand each other's motives better.