help and advice needed post colposcopy?

Hi, I have been on and off this site for a few years but never posted. I had my abnormal smear in early 2010, colposcopy and cin cells removed by loop cone biopsy mid 2010. I then had an mri which was clear. I have been having 6 monthly and then yearly colposcopy. 

The most recent was in June. They did a biopsy as there was some grey tissue. I got a letter today saying it was negative, but the consultant has scheduled me a transabdominal ultrasound for 2 weeks time. I'm so worried now.

Been getting some pains and I'm stressing with every twinge. 

I'm just so worried, any thoughts?