I’ve actually since done this flight, at 21 and 24 weeks pregnant. We weren’t spoken to about the pregnancy (or at all! No briefing about emex procedures/literature, which I found surprising). Had I spotted anything in the booking process that would’ve said we couldn’t have sat there, I admittedly wouldn’t have booked them, but at this gestation my partner was still physically capable of opening the door, so we “passed” that test.

my summary of the seats: above concerns were largely correct, but I’d still recommend them overall. Much, much better than the equivalent seats in the 3-4-3 B777, which suffer from the two solid armrests on both sides of each seat.