The other characters' reactions would be quite diverse. Belle, being kind - hearted, might offer her support and knowledge of magic to help Regina during the pregnancy. The dwarves might be a bit wary, as they remember Regina's past actions. However, they could also be swayed by her vulnerability during this time. The Blue Fairy might see Regina's pregnancy as a chance for redemption. She could try to guide Regina towards a more positive path, using the pregnancy as a motivation for her to change. Meanwhile, Zelena might be jealous, seeing Regina's pregnancy as something she herself desires, and this could lead to more conflict between the two sisters.
Snow White might be initially suspicious, given their past history. But she could also show a more empathetic side and try to help Regina. Hook might be amused and make some snarky comments at first, but then offer his protection. Rumpelstiltskin could see it as an opportunity to manipulate Regina further, perhaps by offering her magic to ensure a safe pregnancy in exchange for favors.
Well, Emma would probably be very cautious around Regina. She has always seen Regina as an adversary, and this new development would make her even more on edge. She'd be worried about what Regina's pregnancy could mean for the safety of the town. Henry, on the other hand, would be excited. He has always wanted a family with Regina, and this pregnancy would seem like a dream come true for him. The Evil Queen persona might resurface in Regina during the pregnancy, causing the other characters to be even more fearful and on guard.
The relationship could become stronger. Regina, who has had a difficult past, might find new hope and softness in the idea of having a family with the OC. They could start to rely on each other more, sharing fears and hopes about the future. For example, Regina could open up more about her own past traumas related to family, and the OC could comfort her, creating a deeper bond.
Emma would be devastated. She and Regina had come a long way from being enemies to friends. Regina's death could make Emma question her own abilities as a savior. She might become more withdrawn at first, but then use her pain to fuel her determination to protect the town even more fiercely, knowing that Regina would have wanted it that way.
Well, a plot twist might be that Regina's pregnancy is a false one, created by an illusion spell. This could be part of a larger scheme to make her look vulnerable and draw out her enemies. Or perhaps the baby she's carrying has some sort of special power that she has to protect it from other magical beings who want to use that power for their own gain. Also, it could turn out that the pregnancy is a result of time - travel shenanigans, where she got pregnant in a different time period and now has to deal with the consequences in her current time.
Redemption is a very popular theme. Given Regina's complex character arc in the show, many fanfictions explore her journey towards redemption, how she tries to make up for her past wrongs and find a place in the world where she can be accepted and at peace.
Well, it could start with a business - like relationship. Sydney might be working for Regina in some capacity. As they work together on tasks, they begin to see each other's true natures. Regina might see Sydney's loyalty and intelligence, and Sydney might see Regina's complexity and the reasons behind her actions. This new understanding could lead to a deeper emotional connection. They could start to care about each other's well - being more than just for the sake of their working relationship. For instance, Sydney might stand up for Regina when others in the town are being critical of her, and Regina could use her power to help Sydney achieve some of his personal goals.
Regina often develops from a more guarded and controlling character to a more nurturing one. As she raises Emma, she starts to let down her walls. For instance, she may begin to show more vulnerability around Emma, sharing her own past traumas.
There's also 'Regina's Redemption through Archie'. In this fanfiction, Archie becomes a crucial figure in Regina's journey towards redemption. It shows how his kind and understanding nature can influence her to make better choices. It's really interesting to see their interactions unfold as the story progresses.
At first, their relationship might be full of mistrust. But as they interact more, they could start to respect each other's power. For example, Regina might see Dr Facilier's voodoo magic as a useful tool in her schemes.
Emma would probably be very hurt. She might feel like she can't trust Regina anymore and immediately cut off all contact with her.
One possible motivation could be revenge. Pan had caused a lot of trouble in the Once Upon a Time universe. He was manipulative and had endangered many characters. Regina, who had her own history of being wronged, might have seen killing Pan as a way to protect herself and those she cared about.