advice needed. Am I miscarrying?

Keely

I'm 7 weeks and 4 days. This past week my pregnancy symptoms have been fading. And now my boobs are barely sore. Last night I had some cramps and when I went to the toilet there was red and pink blood when I wiped. This morning the we'd had stopped but was a light brown colour when I wiped. Then this afternoon the brown has gotten darker. It's only when I wipe, nothing on panty liner. I'm having light period like cramps and light back ache. I'm so scared of miscarriage as I had one a new years ago and it was horrible. I've seen my doctor today and have a scan booked tomorrow. I'm just wondering, had anyone had something similar happen to them and been fine or am i right in expecting the worse?