Pregnancy after miscarriage


I’m 6 weeks pregnant after a blighted ovum in july. Trying not to stress /worry but this morning I felt like my boobs didn’t hurt anymore like they have been. My symptoms disappeared last time too. Ran to my local women’s click to take a pregnancy test and it’s very very dark compare to how light it was a week ago. Anyone have anything similar to this happen to them? Am I over thinking it? What’s the chances of two miscarriage in a row?