Salam sayang, I really understand your worry, especially after what you've been through before. Spotting at 6-7 weeks boleh jadi normal, especially kalau dating based on LMP kamu mungkin lebih awal dari yang kita kira, a few mums I know had light spotting early on and the baby turned out okay, tapi ada juga yang discovered timing was off from the scan. Since you don't have the sharp cramps like your previous miscarriage, that's actually a good sign, tapi the penebalan rahim without clear sac or heartbeat yet does need close watching. I think it's really worth going back to your doctor sooner rather than later to track the hCG levels or repeat the scan in a few days, sometimes the dates are just off, but you deserve the peace of mind after waiting so long. Sending you lots of gentle strength, mummy.