Pcos and implantation bleeding?

Hey ladies i recently got diagnosed with pcos and currently trying to get pregnant. I thought i was having the implantation bleeding. It started with brown spotting then started mixing with a little bit of red blood. The next day it got a little heavier so i figure af was coming early. But that only lasted 2 days? Now im back to brown spotting. Barely anything on my pad just mostly when i wipe. Any ideas? Af supposed to come on the 2nd.