Implantation

Hey guys, sorry about the TMI but my fertile window was from the 1st to the 6th of November as to which i had unprotected sex 3 times, twice in the one day (in a period of an hour). On Saturday the 10th i started getting a discharge that was a white milky colour and was like water and today the discharge is like a pinky colour. Could this be implantation bleeding? I struggle with PCOS so any tips on falling pregnant or if i am pregnant preventing miscarriages would be lovely. Note i took a test this morning but it would be too early due to only having sex last week. Been trying for a baby for 1 year now. Thankyou 💙💙