Could Light Brown Bleeding On Days 26–27 Of My Regular 28-day Cycle Be Implantation Bleeding?

hi, i want to ask regarding my menstrual cycle.. i am actively trying to conceive for the past 6 months. my cycle is very accurate, every month is a 28 days cycle.. for this month cycle, i have a spotting on 24th day, but on the 26th and 27th day, i have a very light brown bleeding.. today i am at 27th day.. is there a possibility that im pregnant and having implantation bleeding ? additional info, i have a miscarriage last year at 7th week, then diagnosed with ovaryan cyst.. please assist to advise and appreciate your reply. thank you