Nightwing and Batgirl's relationship would experience a significant transformation. Their carefree days of just being superheroes would be over. Now, they would be focused on building a family. Nightwing would become more of a caretaker, not just for Batgirl but also for their future family. There would be more tenderness between them. They might argue more too, as they face the stress of impending parenthood. For example, they could disagree on how to raise the child, whether to keep it away from the superhero life or train it to be a hero from an early age. But overall, their bond would be strengthened as they face these new challenges together.
Their relationship could start as just comrades in the fight against crime. They respect each other's skills and slowly start to rely on one another more. As they go on more missions together, they begin to understand each other's quirks and personalities better, which deepens their bond.
They would likely become more protective of each other. Kurama would be constantly on guard to keep Botan and the unborn child safe. Their relationship would deepen as they share the new experience of impending parenthood. For example, they might have more tender and private moments together, away from their usual adventures.
They would become closer. The shared experience of expecting a baby would deepen their bond. Kristoff would be more tender and protective towards Anna, and Anna would rely on Kristoff more for emotional support.
In a pregnant fanfiction, their relationship would deepen. There would be a new level of intimacy. They would have to communicate more about their future and their hopes for the baby. Percy might become more domestic, like helping Annabeth with household tasks. And Annabeth would rely on Percy more for emotional support during the hormonal changes of pregnancy.
Jayne, who is usually rough around the edges, would have to soften up a bit. His relationship with River would transform from a somewhat distant one to a very close and interdependent one. River, with her pregnancy, would be more in tune with her emotions, and this could help Jayne open up more as well. They would start to communicate on a deeper level, sharing fears and hopes for their future and the future of their unborn child. For example, they might start having long talks at night about how they want to raise the baby, what values they want to instill, etc.
Their relationship would likely become more serious. They would have to depend on each other more. Steven would be very protective of Connie, and Connie would rely on Steven for emotional support as well as his unique abilities. For example, he could use his shield to protect her from any potential harm.
In a pregnant fanfiction, their relationship would grow deeper. There would be more emotional intimacy as they share the joys and fears of the pregnancy. Gohan might become more domesticated, helping Erasa with things like cooking and cleaning, which he may not have done as much before. Erasa would rely on Gohan more for emotional support, and they would have to communicate better to make decisions about the baby's future.
They would likely become more connected on a deeper level. The pregnancy would force them to rely on each other more, whether it's for emotional support or practical things like preparing for the baby.
They would become more protective of each other. Kaneki would be constantly worried about Touka's health during the pregnancy, and Touka would be more cautious about getting into dangerous situations. Their relationship would also become more centered around the future, planning for the baby's life.
They would become more protective of each other. Starlord would be constantly worried about Gamora and the baby, and Gamora would rely on Starlord more.