2nd Pregnancy After C Section Brown Discharge

Caroline

I am on my second pregnancy my little girl is 15 months old. I am only 5.5 weeks but am experiencing a bit of spotting but mainly bits of dark brown discharge. I did bleed for 3 months post c section so I wonder if that has anything to do with it clearing out? Still too early to scan here in the U.K. but am obviously worried about possible miscarriage. Anyone been through something similar?