Implation bleeding or ovulation spotting?

Alexandra • Just living life one cycle at a time

I took a plan b before my last period (june 25th-june 30th). It's been around 8-9 days since and on July 7th, i had heavy brownish-pink discharge and it stopped a day and a half later. I'm super worried i'm pregnant. Thoughts? (no ejaculation got inside of me and i highly doubt any precum did either but i took the plan b to avoid the risk) am i pregnant?