One plot idea could be that they accidentally find out about the pregnancy. Natsu, being his usual impulsive self, is at first shocked but then becomes extremely protective. Cana, on the other hand, is a bit more hesitant as she's not sure how to handle this new situation while still being part of the guild. They could face challenges like dealing with the guild's reactions, some of which might be positive and some negative. And they have to prepare for the arrival of the baby together, which includes finding a proper place to live and getting the necessary supplies.
Perhaps there could be a magical mishap that causes Cana to become pregnant. Maybe a spell gone wrong during a mission. Natsu and Cana then have to figure out how to deal with this unexpected situation. They might have to search for a way to reverse the spell if they're not ready for a baby yet. But as they spend more time together during this strange situation, they start to realize that they actually do want to keep the baby and build a family.
Another idea is that it's a planned pregnancy. They decided to have a baby because they love each other deeply and want to start a family. In this case, the fanfiction could focus on their journey during the pregnancy. For example, Natsu could try to learn about taking care of a pregnant woman from the other female members of the guild. Cana might struggle with some pregnancy symptoms but Natsu is always there to comfort her. And they could also start thinking about the future of their child, like what kind of magic they might inherit.
Natsu would likely develop into a more responsible and caring character. His protective instincts would be on high alert. He'd probably become more serious about providing for Cana and the unborn baby. For example, he might take on more difficult and high - paying missions to save up for the future. Cana, she would become more nurturing. Her usually carefree attitude might change as she focuses on the well - being of the baby. She might also start to see Natsu in a new light, as a reliable partner for this new chapter in their lives.
In the 'natsu gets cana pregnant fanfiction', perhaps it starts with a magical accident. Natsu and Cana might be exposed to some strange magic that causes an unforeseen bond between them. As a result, Cana discovers she is pregnant. Then, they would have to face the reactions of their friends and the challenges that come with this new situation in their lives.
One plot idea could be that Natsu and Cana go on a special mission together. During this mission, they face various challenges that force them to rely on each other more than ever. As they overcome these difficulties, their friendship deepens and they start to realize new feelings for each other. Another idea is that in a magical accident, Natsu and Cana end up swapping powers for a while. This leads to humorous situations as they try to figure out how to use the other's abilities. They also have to work together to reverse the spell, which brings them closer.
A plot could be that during a difficult mission, Mirajane discovers she's pregnant. Natsu then has to balance protecting her and completing the mission. This would add a layer of tension and emotion to the story.
Well, one possible plot could be that they are on a dangerous mission together. In the heat of the moment, as they face a powerful enemy, they realize their deep feelings for each other and share a kiss. It could be a moment of both passion and a new beginning in their relationship.
One possible plot could be that Natsu realizes his deep feelings for Cana over time. They might go on an adventure together where Natsu protects Cana from a powerful enemy. This shared experience makes them closer and Natsu decides to propose. Their wedding could be a grand affair with all their friends from the guild celebrating.
One idea could be that Natsu and Lucy face challenges in their guild duties while being pregnant. They might have to balance protecting the guild and their unborn child. For example, they could go on a mission that seems easy at first but turns out to be more dangerous due to Lucy's condition, and Natsu has to be extra cautious to protect her.
Well, a plot could involve Natsu and Lucy trying to keep the pregnancy a secret at first. They don't want to cause a stir in the guild right away. As the pregnancy progresses, they start to realize they need to prepare. Natsu tries to earn extra money by taking on dangerous jobs, which Lucy doesn't like. Meanwhile, the baby could have some sort of special magic that starts to show even before it's born, attracting the wrong kind of attention from dark mages.
One idea could be that they face challenges in preparing for the baby's arrival. Maybe they struggle to find a suitable place to live as a family. Another could be that their friends in the guild throw a big, fun baby shower for them.
One idea could be exploring how their guild mates react to the news. Some might be overjoyed and offer all kinds of support, while others could be a bit shocked at first. Another could be focusing on how Natsu and Erza themselves adjust to the idea of becoming parents. Natsu might be a bit clumsy at first but full of enthusiasm, and Erza could be more practical and start planning everything right away.