Their relationship would evolve in many ways. Natsu would become more domesticated in a sense. He might start to do things like helping Mirajane around the house or getting things she needs. Mirajane would be more vulnerable around Natsu, showing her softer side more often. They'd also have a new shared goal of raising their child well. This would lead to them spending more time together, just talking about their baby, and planning for their future family. There would be more emotional moments between them, like when they feel the baby move for the first time, which would further cement their relationship.
Their relationship would likely become more intimate and deeper. With a baby on the way, they'd have to rely on each other more. Natsu would probably become more gentle and caring towards Mirajane, and Mirajane would feel more protected by Natsu.
Well, at first, it might be a bit of an adjustment. Natsu, who is used to being carefree and going on adventures, would now have to think about someone else besides himself and Mirajane. He'd start to see Mirajane in a new light, not just as a friend or a guildmate, but as the mother of his child. Mirajane, too, would see Natsu's growth and it would strengthen their bond. They'd have to communicate more about their fears and hopes for the future, which would bring them closer together.
Chapter 172 is the strongest chapter-level answer because it starts from Not only Shu Yan, but the entire internet was shocked when they saw Su... and follows through on Where's the chaotic scene I was anticipating?. The payoff is that the chapter closes with "Jiaojiao, are you surprised?
A practical answer is Chapter 220, because it turns the idea into a concrete scene. The chapter opens with I know everyone has many questions, and I'm here to answer them one by..., adds pressure through Carrying the heat surge of his research topics, he instantly shot to..., and ends on However.
The best chapter pointer here is Chapter 163, "She Actually Gave President Shang a Zero?!". It opens with Su Yinwan entered a small room, guided by a staff member. and closes on Moreover, by doing so, the online viewers would think her more innocent....
A practical answer is Chapter 169, because it turns the idea into a concrete scene. The chapter opens with Everyone: "What?!" Seeing the shocked and bewildered expressions on their..., adds pressure through If you signed up, be ready mentally.] [Exactly, supporting the sister..., and ends on Wen.
The best chapter pointer here is Chapter 183, "Sacrifice Oneself, Break Them Up!". It opens with Seeing that he held a blue ball identical to Su Yinwan's, Jiang Yan... and closes on Hadn't this woman been relentlessly pursuing him before?.
Look to Chapter 147 for the clearest answer. It begins with Xiao Xueyi nodded in agreement after listening., keeps building through Su Yinwan seemed to have matured overnight, becoming more and more adept..., and lands on Only Jiang Li glanced back at Director Sun, and then took out her own....
Look to Chapter 220 for the clearest answer. It begins with I know everyone has many questions, and I'm here to answer them one by..., keeps building through Actually, from the very beginning of the seed selection phase, we designed..., and lands on However, Su Yinwan and Shang Shaojing weren't.
If you want the clearest chapter reference, go to Chapter 144. Early on, Ordinary people would have been at a loss in this situation by now.; later, the chapter leans on But Jiang Yan was, after all, Jiang Yan..
If you want the clearest chapter reference, go to Chapter 201. Early on, The third time she passed by happened to be when she was rushing back...; later, the chapter leans on Upon hearing Jiang Li's words, Zhao Lang couldn't help but laugh..
If you want the clearest chapter reference, go to Chapter 163. Early on, Su Yinwan entered a small room, guided by a staff member.; later, the chapter leans on Inside, there was only one sofa, and she walked over to it as directed by....