How sad for the family of your co-worker. What a tragedy!
It must be nice to have a $ amount in mind from your parents Its gives you a spring board to work from anyway. It is difficult planning a wedding and can be all consuming. Maybe schedule time on the weekends to just talk about wedding stuff?
Hope the AF goes a way soon!
As for the doc -- sometimes you have to be pushy to get things done. If your "period" doesn't stop in a couple of days or whatever is the norm for you - insist on getting that ultrasound. I hope you're taking iron during all this bleeding - you don't want to get anemic on top of everything else.