4 days after my period i started to have pinkish discharge for two days, now i am slightly bleeding, is this normal? i don't feel any pain.

Irregular bleeding: No, not normal usually. Bleeding after your period could just be an irregular period. It could also be a sign of a sexually transmitted infection, a cervical abnormality, a uterine abnormality, or even a hormonal abnormality. If it only occurs once, it's ok to observe for a few more months, but if it occurs more than once, see your gynecologist.