I took a pregnancy test on april 30th and it came back positive.but i started my period the same say and it lasted 5days does it mean i'm not pregnant?

Retake preg test: Retake the pregnancy test and if positive or if bleeding persists, please see your gynecologist. If the test is negative, then you are most likely not pregnant.

Hard to say...: It's possible to have bleeding in early pregnancy due to implantation however 5 days of bleeding is more than expected and I would worry about your having an abnormal pregnancy. See a physician soon for an ultrasound to see what's going on as this could be a miscarriage or an ectopic pregnancy. Go to an ER immediately if you're having any pain with the bleeding. Hoping for the best outcome for you