csab - sending you a big hun, hope everything settles down soon! You were asking if anyone else had spotted early - my spotting was at just after 5 weeks, and went on & off (including a full-on bright red bleed) for 3-4 weeks during which time we did find a subchorionic hematoma. Resolved itself and went on to be fine (that was X's PG). With you, I think it's a good sign that it's a bit on & off, and agree with the others, it could be breakthrough bleeding as well.

Sending you big positive sticky vibes
Belfie