With DD I always had spotting after sex (bright pink), athough mine usually showed up the next day. DD was born H&H and she's now 22 months.
I also had spotting with this pregnancy, not related to sex, right around 9-10 weeks. It lasted for a couple of days and was mucousy brown. I had a terrible cold at the time, was coughing and sneezing and I suspect that might have had something to do with it. I had an u/s a couple days after the spotting started and everything was fine. That was over a week ago now and I am hoping things are still okay. The spotting has stopped (fingers crossed).
I do know that spotting can happen for all sorts of reasons, a lot of which have nothing to do with m/c. Any chance you can get into your OB or midwife? When I happened to me the midwife agreed to see me right away and hearing the HB really put my mind at ease. Then again, I'm a worrier, so I needed the reassurance.
If it is stressing you out (as it was me), then certainly call. I think for the most part people understand that spotting is stressful.
Hang in there! Oh, and I'm in northern VT too!