I had my period on the 4th of Feb until 9th of Feb, I and my boyfriend had unprotected sex on 14th of Feb although we sometimes used condoms, on our last round we used withdrawal method. 6 days after which is today, 20th of Feb, I had a very very light discharge. What would that be? Ovulation discharge? Since I was on the middle of the cycle or implantation bleeding? Btw, my cycle is unpredictable, I sometime skipped a month, sometimes had 30+ days cycle.