Signs of ovulation and implantation bleeding?

The start of my last period was on 5/26. My cycle is very irregular, but somewhere between 6/6-6/10 I had what seemed to be ovulation discharge (clear, stretchy, etc.) About a week later, I had pink/light brown spotting that only lasted a couple of days. I took a pregnancy test today 6/26 with negative results. I've never spotting like that before, but my test came back negative...could I still be pregnant or maybe just a false alarm?