What would you do?

Unless I was really sick myself I would offer my seat up to her myself. And then quite frankly I would glare at the man and make pointed comments the rest of the way.

In my sweetest southern accent, I would say to the man, "Sugar, I'm sure you didn't notice that this lady who is clearly expecting a little one has no place to sit. If I were sitting I would be more than happy to give her my seat. But I know it's just an oversight that you haven't graciously given her your seat already.." Then if he ignored me, I put Jimbo on him.

I inform the bus driver, it is mandatory to stand up and let elders AND pregnant women sit here.

Um, well, as a man, I would just give the pregnant lady my seat.

I don’t know what I could do. If I were standing I wouldn’t have a seat to give her. I would likely ask the man to give the lady his seat.

I think I would be rather tempted to say (in a voice loud enough for the sitting inconsiderate man to hear) hey, sweetie, I would give you my seat, if I had one to give you. I remember well how hard the last month or so can be, waiting for your baby to arrive! Might be a tad naughty, but after all, if he isn't handicapped or in worse shape than she is, it's the right thing for him to do to give up his seat. On another note, I am proud to say I have witnessed my own sons give up seats for elderly or pregnant women in the past. Maybe the man had not been taught to do this, but that's doubtful. Most men would be kind enough to know that.

I would request the man to vacate his seat for the pregnant woman

About the only thing I could think of to do is loudly apologize to her that no one is willing to give her his/her seat, perhaps that would embarrass that man enough to get him to give up his seat.

I would give the seat to the lady and give him a stern look.

I would give the pregnant women my seat.

If I were younger, I would offer her my seat. In my present condition, though, others should be offering me their seats.

This has happened to me before, or rather, i have encountered it. There was a pregnant lady on board the bus and no one seemed to bother to give up their seats for her. So, I waited. And true enough, after a few stops, somebody alighted and I dashed and put my bag on the empty seat to reserve it for her. I then called out to her gently and ushered her to the seat. The rest of them sitting just pretended to sleep or look unfazed.

I will try to ask him , if he refuses , there is bound to be other kind hearted people on the bus to give the lady their seat

I remember telling a man to "get the f*ck up and move" out of irritation for not getting up to give a pregnant woman a seat. I was particularly incensed that day due to anxiety, sensory overload and a very poor quality sleep the night before.