Lots of women do spot in first trimester and some, like me, outright bleed. It doesn't matter if the blood is brown, red or pink. A few clots aren't necessarily a sign of a problem either. It could have been a hematoma bleeding itself out (that's what I had). The general rule of thumb is if it's light to moderate, report it to your Dr. Very heavy bleeding (a pad an hour) should be seen in the emergency room. Typically, going to the ER is not a great idea as they don't consider this an emergency, and quite honestly, with a first trimester miscarriage, there just isn't anything at all they can do (if that is what is going on). However, at 9 weeks, they can do an ultrasound which would give you a definitive answer. Does your Dr. have an on call service? Perhaps calling him or her and requesting an ultrasound right away would be a good idea? It's an awful feeling to sit and stress.
Take good care honey.
It may not be miscarriage. For me every time I went through it was bright red blood like my period for a day or so then extreme pain with heavy bleeding. Call your dr and let her know about the bleeding she may see you sooner. If you can't wait go to the er.
I would recommend calling your doctor immediately and they will probably see you before Tuesday. Don't freak out. I had the same type of symptoms with my 2 child and he is healthy and wonderful. But, it is better to err on the side of caution...way better.