Ay, mahirap sabihin besh kasi bawat katawan talaga ang iba, pero based sa experience ng karamihan sa amin dito, ang spotting na ganyan (parang patak lang) ay pwedeng maging start ng period mo or just breakthrough bleeding dahil sa hormones pa rin, lalo na if exclusively breastfeeding ka pa. I'd say monitor mo muna for the next few days, if it gets heavier or may pattern na, most likely that's your period na; kung parang hindi na umuulit, baka ischeme ng body mo lang pa rin. Pero to be safe, better check with your OB na lang para sure especially since may spotting, kasi gusto mo rin malaman if you need contraception or kung ano talaga nangyayari! One of my mum friends din had the same thing 4 months pp and turned out hormonal lang, kaya walang alalahanin.