Plan B pill mishap?

Kyler • 21, TSS, part of a MC.

Okay so.

My boyfriend and I had an oopsie so I took plan B. I spotted for a day and then nothing at all. I usually get horrendous horrible periods, even after Plan B. He deployed the friday i was spotting and that was over a week ago. I haven't gotten anything else. Would a pregnancy test pick up anything this early, am I freaking out over nothing or what. I reallyyyyy need advice right now.