You could have just said that he was throwing up from 1, 2 or maybe 3 weeks cause after 4 months the baby bump is totally visible and why could wait for 4 months duhh it's too much and In that 4 months there was not a single time when his husband can notice that he is throwing up. I am sorry but I am not being rude I was just advising you for your next ffs.
Author, it's was good but... He was pregnant for 4 months, and throwing up and didn't even know and care about checkup, that's a weird thing, I mean u could have write that he's 2 weaks pregnant 💜