Sakura may also use her medical ninjutsu in a creative way. For instance, she could try to numb the part of Obito's body that is restraining her by using her precise chakra control. Or she might use some kind of medical jutsu to create a distraction, like a bright flash of light or a small explosion of medical energy.
She would probably be very angry. Hermione is known for her strong will and intelligence. Being restrained against her will would likely make her furious and she'd start shouting at Fleur, demanding an explanation.
One possible motive could be to use Sakura as a bargaining chip. If he has some sort of plan against Naruto or the Hidden Leaf Village, Sakura, being a close comrade of Naruto, could be very useful. He might think that by restraining her, he can force Naruto to come to a certain location or make concessions.
Well, in the Naruto fanfiction world, it's possible. Some writers might be interested in exploring a relationship between Obito and Sakura in a different light, and a pregnancy could be part of that story. It could be a way to show how their relationship develops in a very different situation compared to the original series, perhaps in a more domestic or emotional context.
The mouse might become very still and quiet, as if it's listening intently. It could be curious about the new sounds it's hearing.
She might be shocked. Obito is from an older generation and has a reputation, so Sarada would likely be taken aback at first.
She might be extremely hurt. Sakura has deep feelings for Sasuke, and realizing that he is using her in such a way would be a huge blow to her. She could feel betrayed and angry, and might lash out at him immediately.
Sakura might initially be very angry. She has her own strength and pride, and being kidnapped by Sasuke, someone she once cared for deeply, would be a huge blow to her self - esteem. She could try to fight back immediately, using her medical ninjutsu skills and combat training to attempt an escape.
In some fanfiction scenarios, Sookie could be surprisingly calm. She has been through a lot in the 'True Blood' world. She might see this as just another challenge. She could start to plan her escape quietly while pretending to go along with Eric's actions, biding her time until she can get away safely.
Percy might initially be confused. He would probably wonder why Annabeth, who was once his friend or ally, is treating him this way. So he could try to talk to her to find out what's wrong.
Naruto could also react with anger. He's not one to just take things lying down. If Sakura hurts him, he might lash out verbally. He could say things like 'I've always been there for you, and this is how you treat me?' expressing his frustration and pain. And then he might storm off, leaving Sakura to realize the impact of her actions.