First day of last period makes me 7 weeks today but ive been having very dark spotting only on wiping so i was given a First scan at what i thought was 6 weeks, it showed a sac and yolk and measured only 5 weeks so i was called in a week later. Second scan today showed sac, yolk AND fetal pole measuring 4mm = 6 weeks but the lady scanning said it didint look promising. I asked why and she said she could see a flicker which could be a heartbeat or a maternal vessel bcoz it was a weak flicker. Im devastated. Any advise is appreciated