Third pregnancy. Second ended in late term stillbirth. Commute on tube through London daily. My husband wants me to get one as he's worried about me overdoing it or falling over. But a) I haven't used one in my previous pregnancies and didn't feel much need till the end and b) I'm quite an assertive person and totally feel like I can ask for a seat if needed.
This may be silly, too, but I feel the badges kind of encourage the 'no one must talk or make eye contact with anyone else on the tube' rule. I like to see the good in people and, while I've rarely never been offered a seat when carrying my toddler child (which I find harder than carrying a bump in general!), as soon as I've asked politely I've had multiple kind offers. I don't see why it won't be the same if I need a seat in pregnancy.
My husband thinks it's better etiquette to wear the badge for some reason...who is right?