so confused after dr.'s appt

  So I had my first "nurse's visit" at the Ob/GYN today. It was basically just to review mine and my family's medical history. They proceeded with the appt as if nothing was wrong, and when I brought up my slow rising/extremely low hcg levels and the spotting i've had for a week they didn't seem at all concerned, with a response of "sometimes these thigns just happen." I felt so angry. I just want an answer. The nurse even made it seem like this is completely normal, and not to worry. I'm here thinking my pregnancy is over, and they are not worried about a thing--they didn't even know anything was wrong to begin with. They didnt know about my abnormal u/s, my numbers...nothing. I got a ton of routine bloodwork done, and should have my results in a day or two, so more waiting. All I do is wait and wonder whether everything is okay. I'm just starting to feel numb and out of emotion. I'm still scheduled for my u/s next Tuesday. I'm just praying that my hcg numbers climb HIIIIIGH and that the little bug is okay, but I'm also expecting everything to go terribly wrong.

Now for the advice--my nurse had told me that bed rest can help with bleeding/spotting. Since my spotting has been all brown (no red whatsoever) she seemed pretty optimistic about it, but recommended maybe I take a day or two to just lay in bed and basically not move. Should I do it? I do not have specific doctor's orders--actually, my doctor never once mentioned bed rest but the nurse seemed to think it was a good idea. My boss is very supportive, but I am a third grade teacher and I hate the idea of missing another day and falling behind with my little ones.
What would you do?


PS- As soon as my bloodwork comes back, I'm switching OB's. Horrible practice they have going there.