Oh and separately to anything else, one of the advantages of pregnancy is that if it really is just a minor thing, then yes, you can fuck it off guilt free if you want because you're pregnant.
I skipped the ILs family get together for mother's day, because I couldn't be around food smells and they always did buffets.
The fact that I'd have wanted to skive anyway was just a bonus.
Work wanted me in the office 40% of the time - but they let you pick and choose, and my team kept cancelling on me, so I'd have schlepped to London for nothing. So when HR said we don't want you coming in from 20 weeks - yup, I took that opportunity. Team mates who let me down asking me to come in? Jog on, you were always bailing on me. Sorry mate, HR say no.
The fact that travel made me tired, sick and dehydrated was a bonus.
I'm not going to be noble about this. I'm going to take the advantages as they come.