Sarada might be initially shocked and sad. She loves both her parents, and the divorce would be a huge blow to her. She could become withdrawn for a while, not wanting to talk to her friends about it.
Naruto would probably be extremely happy and excited. He has always been close to Sakura, and seeing her become a mother would be a big moment for him. He might be there to support her during the birth, bringing some of his positive energy to the situation.
Sasuke would likely be initially shocked. He's a man who has been through a lot and is used to a life of solitude and danger. But then, a sense of protectiveness would kick in. He'd become more vigilant about the safety of Sakura and their unborn child. He might also start to think about how to be a better father than his own was, in some ways, trying to break the cycle of his family's past.
Itachi would probably be very calm and composed. He might see Sarada as a symbol of the new generation of ninjas in the village. He could be gentle with her, perhaps sensing her potential and her desire to grow as a ninja.
Growth is also a frequent theme. Many fanfics show Sarada growing as a ninja with Sakura's influence. For example, in some fanfics, Sarada overcomes her weaknesses in combat or in her chakra control through Sakura's training and advice.
One great Sasuke, Sakura, Sarada fanfic is 'A Family's Bond'. It beautifully portrays the family dynamics between them. The story shows Sasuke's growth as a father, Sakura's strength as a mother, and Sarada's journey to understand her family better.
Another reason is that it allows for creative interpretations. Fans can create their own versions of how Sakura protects Sarada. It could be in a world full of new threats or in a more slice - of - life setting. The flexibility in storytelling attracts a lot of fans who want to contribute their own ideas to this relationship.
Since lemon fanfics are inappropriate, they usually involve non - canon and often vulgar descriptions. But if we consider in a more general sense, in normal fanfics about Sakura and Sarada, they might have characteristics like exploring their mother - daughter relationship deeply, showing how Sarada inherits Sakura's strength and tenacity.
One idea could be a story where Sasuke takes Sarada on a special training mission, much like how his father might have trained him. Sakura could be worried at first but then see how Sarada grows from the experience.