Oh fefe Im sorry, this is being such a rough time for you, completely normal and understandable after so long TTC. It is very hard to enjoy your pregnancy through fear.

Your HCG looks like its rising lovely. Bleeding happens in a lot of pregnancies and for a myriad of reasons, it may have been left over blood from implantation....

Dull aches/ period pain is very common and sometimes the first sign of pregnancy for some women. Breats tenderness is another great sign. Increased and changed CM is good too

Nothing anyone can say is going to lessen your anxiety only time will do that and even then the anxiety is only lessened, never gone IMO. I know your Dr hasnt been very supportive but perhaps you can explain that you are not coping with not having regular blood, it's no skin of his/ her nose