Talk to Gynecologist on Bleeding After Periods

Hi. I am 23 f. Virgin. I was on my periods. It was 6th day I saw white discharge so basically I was done with my periods. I did ghusl and after an hour I saw brownish red bleeding i thought mera wehem hao. After 2 hours saw it again. I am not even sure if its period bleeding. What is it? Do I have to do ghusl again? And whyy is it after white discharge?