I had an anterior placenta with DD, with this pregnancy I don't think it is so much anterior but they still class it as anterior. Both bubs were anterior in their presentation (well this one is so far and I think I can assume he will stay that way!). I felt kicks late, but don't think there was much difference other than that.

Haven't heard anything about the third stage being different... I had the injection with DD and it came away cleanly, quickly, no problems. This time around I'm planning a natural third stage so I can report back if you like... whenever this little guy chooses to make an appearance!