Honestly I wanna know too, because no reasonable man would assume another man carried and gave birth to their child, unless it’s in the omegaverse ofc.
Currently at chapter 67 and he still doesn't know that wowo is his child, But, he's getting suspicious. probably at chap 68? or 69? possibly he'll know the truth due to blood transfusion.
you can read the english choaters in Youtube
I read that one the translation is also kinda ok
what chapter will the seme discover that wowo is his child?