I've never been pregnant so i can't provide any advice other than what I've read from other women and other sites online. First, I would tell you to calm down b/c stressing yourself out is not good for your body or your baby. Second, there are many women who bled (had their periods) throughout their whole pregnancy. It's uncommon but it does happen. There are also women who bleed the first few months of their pregnancy and then stop. SOme doctors have told women they aren't pregnant when they are or that they miscarried when they didn't. Your doc said you were 5 weeks pregnant and they count from your last menstrual period (L.M.P.). So depending when you ovulated, you make REALLY only be 1 or 2 weeks pregnant which means you could be having your regular period. My best friend had her period and didn't know she was pregnant. it wasn't implantation, it was her actual period.
So, if you can, try to listen to some calming music and don't worry too much. You're body is going through a lot of changes right now and trying to adjust. If you have any major worries, see a doc asap. Otherwise, I say CONGRATS to you!!!
I not to sure about you misscarrieing but I know what you mean about the yahoo answer being rude. I was on there about over week ago asking about implant bleeding they can be really mean. All they say is go take a test I like i am but did anyone have this what was theres like. Everyone here is nice. I hope everything works out with you.