Brown/pink spotting

Has anyone ever had brown or pink spotting in the middle of a pill pack? I’ve been on birth control for years, and just haven’t had this in a while. I’m really nervous it is Implantation spotting. I take my pill well, it’s a combo pill, but there are of course still anxieties. My boyfriend did finish inside on accident about 2 weeks ago. I’ve had this spotting the last few days. I took a pregnancy test, but I’m still so worried.

Has anyone experienced pink/brown spotting after years of pill use? Also I’m not due for my period for about 2 weeks. HELP