I've been trying to figure out the difference between ovulation bleeding and implantation bleeding. I had unprotected sex (he pulled out and ejaculated a few seconds afterwards) on March 3 (2 days after my period ended) and experienced light bleeding (the discharge was a pinkish-brown) on March 10 which, according to my calendar, is right in the middle of my ovulation window. My next period is due on March 26. Today, I experienced thin, milky-white discharge. Did I experience ovulation bleeding or implantation bleeding? It's my first time to have a pinkish-brown discharge and I'm getting paranoid.