Sis, please go see your doctor or OB agad, kahit konti lang ang bleeding, kailangan nila itong i-check properly especially since delayed ka na, para ma-rule out kung ano talaga ang nangyayari.
I know it's scary (first-time mom anxiety is REAL, I get it!), but better safe than sorry, they can do a quick ultrasound or test to give you peace of mind. Sending you strength! Let me know how it goes.