Yes, there might be such fanfics in the vast world of fanfiction. However, it's a very interesting and rather unusual crossover concept. Naruto and Erza are from two completely different anime universes, so when someone creates a fanfic with such a relationship, it often involves a lot of creative world - building and re - imagining of the characters' backstories to make it seem plausible.
There could be. However, this is a very specific and rather unusual crossover concept. Some fanfiction authors love to experiment with combining different universes like Naruto and Fairy Tail in this case. But it might be a bit hard to find directly. You may need to use advanced search options on fanfiction platforms, like filtering by crossover and specific character relationships.
In such a fanfic, Naruto's values of never giving up and protecting friends would be passed on to Erza. The story could show how Naruto's training methods might influence Erza's combat training. Also, there could be a lot of cultural clashes and fusions. For example, the ninja village culture could mix with the guild culture of Fairy Tail. It would be a story full of action, adventure, and new ways of looking at the characters we know from both series. There might also be a plot where Erza has to discover her father's true identity and come to terms with her unique heritage.
One possible plot could be that Naruto somehow gets transported to the Fairy Tail world before Erza is born. He then meets Erza's mother and gets involved in her life. Eventually, he becomes a father figure to Erza as she grows up, teaching her some of his ninja skills and values from the Naruto universe.
For Naruto, his development could focus on how he adapts to the magic - filled world of Fairy Tail. He might start to question his own ninja abilities and learn to incorporate magic into his fighting style. For example, he could learn to use chakra in new ways inspired by magic. Erza, on the other hand, could develop by learning about Naruto's strong sense of loyalty and how it differs from the loyalty within the guild. This could make her re - evaluate her relationships and her role in the guild.
In some Naruto fanfics, Erza could potentially be written as a mother figure. However, since Erza is from 'Fairy Tail' and Naruto is from 'Naruto', it's a crossover concept. It depends on the creativity of the fanfic writer to blend her character traits in a way that she can be seen as a motherly influence in the Naruto universe.
I'm not sure if there is an exact 'Naruto Pregnant Erza' fanfic. Fanfic topics can be very diverse, and this is a rather unusual crossover concept. You might try searching on some major fanfic websites like FanFiction.net or Archive of Our Own, but there's no guarantee you'll find one.
They could have adventures where they combine their skills. Naruto could use his ninja techniques like shadow clones, and Erza could use her different armors and magic. For example, they might fight against a powerful enemy that is a threat to both their worlds. Naruto's clones could distract the enemy while Erza changes into her strongest armor to deliver a powerful blow.
Yes, there might be some fanfics out there with such a concept. You can try searching on popular fanfic platforms like FanFiction.net or Archive of Our Own. However, the quality and nature of these fanfics can vary greatly.
Friendship and teamwork are also common themes. The idea of Naruto, who is all about his friends in his own story, and Erza, who is a key part of her guild, coming together to form a new kind of friendship and work as a team is really appealing in these fanfics. For example, they might face a powerful enemy that requires both of their unique skills to defeat.