One possible storyline could be that they face unexpected challenges during the pregnancy. Maybe they have to deal with how their family and friends react, and there could be some comical misunderstandings among them.
Perhaps in the fanfiction, there are some supernatural elements involved since the show often has such themes. The pregnancy could be affected by some strange forces from Gravity Falls. They then have to figure out how to protect the unborn baby from these threats while also dealing with their own emotions and the changes in their relationship.
If you want the clearest chapter reference, go to Chapter 109. Early on, And another thing," Jiang Li said, taking out a tissue to wipe her lips,...; later, the chapter leans on The next time we have a meal, don't try to chat with me unless you're fine....
A practical answer is Chapter 80, because it turns the idea into a concrete scene. The chapter opens with Jiang Yan and Wen Jiaojiao, one so smug he was almost ascending to the..., adds pressure through There's abalone, eels, crabs, isn't that tycoon enough?" "Hang on." Shu..., and ends on.
Look to Chapter 62 for the clearest answer. It begins with Sitting on the edge of her bed, she pondered for a while before lifting..., keeps building through The moment the door opened, she saw her photographer with his hand still..., and lands on Jiang Li reached in, pulled out a piece of paper.
A practical answer is Chapter 38, because it turns the idea into a concrete scene. The chapter opens with Jiang Li had also observed the girl who had just entered., adds pressure through When did Jiang Li become so rational and composed?!, and ends on He Yun coldly turned his head and continued to.
Look to Chapter 68 for the clearest answer. It begins with Jiang Li carried the noodles straight out of the kitchen and came to the..., keeps building through Uncle had already returned from the fields, and he was sorting through a..., and lands on But didn't Uncle Zhao say he was still sick?.
A practical answer is Chapter 85, because it turns the idea into a concrete scene. The chapter opens with Facing everyone's skepticism and curiosity, Jiang Li explained fluently:..., adds pressure through Hearing Director Sun's words, he muttered in frustration, "Damn, if I knew..., and ends on.
The best chapter pointer here is Chapter 94, "Finally, Someone Comes to Calculate Affection!". It opens with Jiang Li really has some skills, being able to figure that out." "Can the... and closes on Brother is going to dress you up; look how pretty this outfit is."....
A practical answer is Chapter 36, because it turns the idea into a concrete scene. The chapter opens with But soon, people began to question the authenticity of Jiang Li's bare..., adds pressure through Qi Tianyu, catching the signal, instantly turned to the duo upon entering..., and ends on After.
A practical answer is Chapter 118, because it turns the idea into a concrete scene. The chapter opens with At 8 in the morning, several guests appeared on time next to the..., adds pressure through How can I see what you're saying?, and ends on Hearing this, both Jiang Yan and Shu Yan started to.
If you want the clearest chapter reference, go to Chapter 48. Early on, He Yun felt guilty for initially ignoring Jiang Li on purpose, and with...; later, the chapter leans on That's why he gave her the Perfect Card right off the bat..