The plot could be that Charlie meets a witch during one of his trips back to England. They fall in love quickly and soon she discovers she's pregnant. Charlie then has to decide whether to stay in Romania with his dragons or come back to England more permanently to be with his new family.
Perhaps the story could start with Charlie already knowing about the pregnancy. He could be worried about how his family will react, especially since he's always been the 'loner' Weasley in Romania. The fanfiction could then follow his journey of coming to terms with becoming a father and how he plans to raise the child in a world full of magic and danger. It could also involve him teaching the unborn child about dragons and their importance in the wizarding world. As the pregnancy progresses, he might face some difficulties due to his distance from his family and his responsibilities in Romania. For example, he may have to find a way to balance his work with the dragons and his need to be with his partner during the pregnancy.
In a fanfiction like this, the plot could center around a prophecy related to the unborn child. Charlie and his partner could discover that their child is destined for something great in the wizarding world. This would add an element of mystery and adventure. Charlie would then be in a race against time to protect his family from those who might want to harm the unborn child because of the prophecy. He would have to use his skills and knowledge of dragons as well as his connections in the wizarding world to keep them safe. Along the way, there would be character development for Charlie as he transitions from being just a dragon - tamer to a family man with a huge responsibility.
If you want the clearest chapter reference, go to Chapter 76. Early on, Thinking of this, the aunt repeatedly praised, "Girl, hearing your words...; later, the chapter leans on I'll go back and tell this to my child; he will definitely be motivated to....
If you want the clearest chapter reference, go to Chapter 67. Early on, I'm pissed," Jiang Yan cursed again, "These people are too much, aren't...; later, the chapter leans on They expect us to fend for ourselves even to sleep and to eat—I mean, at....
Look to Chapter 44 for the clearest answer. It begins with But the next move by the production team proved they hadn't forgotten the..., keeps building through Since the Southwest Plateau area was economically backward, the airport..., and lands on Does anyone here know how to drive?.
A practical answer is Chapter 60, because it turns the idea into a concrete scene. The chapter opens with What's with Jiang Yan, treating his own sister Jiang Li like this?" "He..., adds pressure through Jiang Yan, are you that lacking in confidence?, and ends on And in traditional characters?".
A practical answer is Chapter 86, because it turns the idea into a concrete scene. The chapter opens with After over an hour of fuss, it was finally time to eat., adds pressure through Having tasted the tomato and eggs again, Wen Jiaojiao sighed in relief,..., and ends on But then her expression.
If you want the clearest chapter reference, go to Chapter 72. Early on, Jiang Yan was still griping when suddenly a fair hand reached out beside...; later, the chapter leans on I'll take these, thank you." In an instant, five pairs of eyes stared over....
Look to Chapter 45 for the clearest answer. It begins with Helplessly, Jiang Yan had no choice but to step on the accelerator., keeps building through As Jiang Li had said, this stretch of road was indeed difficult to..., and lands on The guests have to go through so many troubles on the way.
A practical answer is Chapter 69, because it turns the idea into a concrete scene. The chapter opens with Since the phones issued by the program team couldn't log into Weibo, Wen..., adds pressure through He knew his charm was undeniable!, and ends on Wen Jiaojiao immediately hugged her arms.
If you want the clearest chapter reference, go to Chapter 17. Early on, Jiang Li glanced at Jiang Shixu, who was tense and anxious behind her, and...; later, the chapter leans on Okay, let's go eat." After speaking, she strode forward..
A practical answer is Chapter 73, because it turns the idea into a concrete scene. The chapter opens with Director Sun, tongue-tied, finally managed to squeeze out a sentence,..., adds pressure through Her favorite food is rouge goose, her favorite amusement is Dancing Gun,..., and ends on Despite.