Talk to Gynecologist on Disturbed Period

i had laproscopy of my ovarian cyst 1.5 months ago. after that, had my period of 28th day cycle, ( heavy bleeding) this month i had 37th day cycle. period start with just few drops blood. than i had brown very very low spotting type for 2 days. then bleeding start but that was still very low. less than normal. with very less clots than usual. i normally used to had my period 2.5 days. i am worried, why this is so, is this normal ?