Once he realizes that Gaara is serious about the kidnapping, Naruto would start to plan his escape. He would use his ninja skills and his quick thinking. Naruto has a lot of experience in getting out of tough situations. He would look for any weaknesses in Gaara's defenses or in the place where he is being held. And while he's planning his escape, he would still be trying to reason with Gaara, hoping to resolve the situation without having to fight his friend.
Sakura might be a bit surprised at first. She has always seen Naruto as a friend, but she would quickly come to support him. She knows how much Naruto values his relationships, and if he has found love with Gaara, she would be happy for him. Kakashi would be very accepting. He has always believed in Naruto's judgment and would see this as another step in Naruto's journey to change the ninja world. Shikamaru would probably be the one to think about all the political implications but in the end, he would also support it as he trusts Naruto.
The friends from Gaara's village, like Temari and Kankuro, would be very protective. Temari would likely give Naruto the 'big sister' talk, warning him to take good care of Gaara. As for Naruto's friends, they would support him wholeheartedly. Choji might bring over some of his favorite snacks for Gaara, thinking it would be good for the baby. And Hinata would be quietly supportive, maybe knitting some baby clothes in her spare time.
Naruto might be initially confused. He is used to being friendly with everyone, and this sudden possessiveness from Fem Gaara could catch him off - guard. So he may just try to talk to her to understand why she is acting this way.
Temari and Kankuro would probably be very protective. They've always been close to Gaara, and seeing him as a baby would bring out their nurturing sides. They'd do everything they could to keep him safe and find a way to turn him back. Naruto, on the other hand, would be shocked at first but then would see it as his duty to help. He has a strong sense of justice and friendship, and he wouldn't abandon Gaara in such a state.
Naruto, being the friendly and optimistic one, would likely be excited for Gaara. He might encourage Gaara to be more open about his feelings towards Sakura. He could offer advice based on his own experiences with Hinata. Sasuke, though, would probably be aloof. He has always been more focused on his own goals and revenge. He might view Gaara's crush as a distraction for Gaara and tell him to focus on more important things, like protecting his village. However, deep down, he might also hope that Gaara can find some happiness.
The ninja from other villages would also have different reactions. Those who knew Gaara and his past might be more understanding of Naruto's new behavior, thinking it's just a phase or a way for Naruto to grow. However, those who were enemies of Gaara in the past might see Naruto's change as an opportunity to attack, believing that he has become more vulnerable or unpredictable. The Akatsuki members, if they are still around in the fanfic, might try to take advantage of Naruto's new state, seeing it as a chance to capture him or use his power for their own evil purposes.
The Uzumaki family, if any are still around, would be overjoyed at the news of Fem Naruto's pregnancy. They would probably start preparing traditional Uzumaki baby items and sharing family stories with Naruto. In Gaara's case, the people of the Sand Village who once feared him might now see a new side of him and start to show more support and acceptance, seeing him as a future father and a more approachable leader.
They're similar in their tenacity. Naruto never gives up, no matter how tough the situation is. He keeps fighting against powerful enemies like Pain or Sasuke. Gaara is the same. He has faced numerous challenges, especially when dealing with the internal and external threats to his village. Despite his past traumas, he stands firm. Also, they both understand the pain of being an outcast, which makes them empathetic towards others who are suffering.
Well, Naruto could be depicted as being similar to Gaara in their inner strength. Gaara was always strong on the outside but had a fragile heart. Naruto, in this fanfiction, may share that same duality. Maybe he shows Gaara that having a strong will doesn't mean suppressing emotions. He could be the one to show Gaara that it's okay to let others in, since Naruto is always about making friends and bringing out the best in people.