HELp me pcos

Hi I have pcos as I as ovary cysts .. I have irregular periods my last period was 19th December to the 28th .. on the 28th of January I started getting light pink when I wiped turned to brown then light red now been having dark brown fark red light pink and light pink every colour blood but only really light not heavy like my usual AF imconfused it’s my 10th day now and I’m abit worried , I got a faint line on a test on Thursday and today I got negative I don’t know what’s happening anyone know ?