The fact that he kept mentioning not wanting a baby to ruin their peace; I knew she was gonna get pregnant
That's what I find "weird".
Why push so hard on that, making Xu Qing say things like "it's too soon", "I don't want to ruin the peace", "there's still things I/we want to do before a kid", "I don't care about what the oldies want or say" (<- this is a self made tldr of his talks with his father).
And now...boom. We're 90% possibly with kid. True that Jiang He wanted a kid (to avoid studying), but it still doesn't get me why going all that with Xu Qing if baby arrives 2 pages after.
And, yes. I'm happy for them and kinda scared we're reaching the credits for real this time (tho, with good planning and pacing, we could still go a bit longer with more SoL, just now with a kid), but if I have to be completely honest, I find the delivery of this news a bit forced (like "yeah, Xu Qing is right, they're young....but, as the author, it's time I give you the baby)