The main characters are obviously Jack and Angelica. Jack, the swashbuckling pirate, and Angelica, who has her own complex personality and relationship with Jack.
One possible plot could be that Jack and Angelica face a lot of challenges during the pregnancy. Maybe they have to deal with family reactions, like Jack's pirate crew being shocked but gradually supportive. They might also struggle with preparing for the baby in their rather unconventional lifestyle.
Well, they would face many challenges. Firstly, in terms of their relationship, they have a complex dynamic already. With the pregnancy, they'll need to figure out how to co - parent. Jack is used to being on his own most of the time, and Angelica is a strong - willed woman. Secondly, there's the issue of their enemies. Their enemies could use Angelica's pregnancy against them, either by trying to capture her or using it as blackmail. Thirdly, from a practical point of view, finding proper medical care during pregnancy in the pirate world would be extremely difficult.
Many Jack and Angelica fanfictions are based on alternate endings to their story arcs. Some might rewrite the ending of their relationship to be more positive or, on the contrary, more tragic. There could be a fanfic where Jack sacrifices himself for Angelica in a very dramatic and unexpected way, changing the whole tone of their relationship.
You can start by looking on fanfiction websites like Archive of Our Own (AO3). It has a large collection of fan - created works, and you can easily search for Jack and Angelica fanfiction using the search bar. There are usually tags and filters to help you narrow down your search to the specific type of story you're interested in.
One possible plot could be that Jack and Angelica are on a new adventure together. They are forced to work closely to find a hidden treasure. Along the way, they face many challenges and in a moment of victory and celebration, they share a kiss. It could be a spontaneous moment, filled with the excitement of the discovery and their underlying attraction for each other.
I haven't come across a 'Chuckie Angelica pregnant fanfic' myself. Fanfics are created by a large number of fans around the world, and new ones are being written all the time. It's possible that someone has written such a story, but it might not be widely known. You could also try reaching out to Rugrats fan communities on social media platforms. They might be able to point you in the right direction if such a fanfic exists. Some fan communities even have their own collections or repositories of fanfics that are not as easily discoverable on the general fanfic platforms.
There's also 'Jack and Angelica: A Forbidden Love'. This fanfiction could explore the idea of their love being something that society or their circumstances try to prevent. It may include elements of them fighting against all odds to be together. For example, they might have to overcome differences in their social status or the disapproval of their families.
One idea could be that Jack Sparrow, in his usual roguish way, is initially shocked but then slowly warms up to the idea of becoming a father. Maybe he tries to give up his pirating ways for a while to take care of Angelica. Another could be that Angelica uses the pregnancy to manipulate Jack into doing certain things for her, like helping her find a hidden treasure that she believes will secure their future. And a third idea is that they both face opposition from other pirates or characters who don't want a pregnant woman on board or think Jack will be distracted.
After the kiss, they might become more open with each other. Jack could start to share more of his true feelings and secrets with Angelica. They could decide to become partners in all their future adventures, with a new level of trust between them.