Ughh help

Super afraid that I'll have a miscarriage or already have... I had pink spotting with some red blood for three days, but I think that's from the sex.. I'm not sure BUT it completely stopped today . My levels were 262 Sunday and according to the doctor, I'm 3/4 weeks pregnant.. he did blood work and ultrasound everything came back normal, but he couldn't see anything on the ultrasound due to how early I am. I'm scared:( I haven't had any heavy bleeding, or cramps except for the occasional gas pains, but I do have really sore boobs.. and today I've noticed an increase in my CM. I'm extremely wet.. any thoughts would be nice