Eh mama, spotting dalam early pregnancy memang boleh happen, tapi since your doc mentioned ectopic as a possibility, you really need to see him/her again or go to A&E today , jangan tunggu. Spotting + uncertainty about sac location needs proper follow-up scan, bukan just wait and see. I know it's scary, but better safe than sorry kan. A few of my mum friends went through similar scares and the doctors sorted it out with repeat ultrasounds. Hang in there, go get checked out now ya. Thinking of you.