Spotting????!

So I just got back from Christmas vacation (my bf and I are long distance so you can imagine how often we went at it during Christmas break!). We did a Plan B toward the middle of the week and had sex 2 more times unprotected after (I know, how stupid). I never spotted or anything after a Plan B before, but I’m spotting now. It’s wayyy too soon to be implantation spotting so I don’t think it’s because I’m pregnant. Any suggestions?

PS we’re in our mid 20s with stable careers so if I am pregnant it won’t be that crazy of a situation, but of course with us being separated so far away (he’s deploying in a matter of days) that doesn’t make it better