I've been working out for a month now, today I did some diff stuff though. I started spotting pink afterward. Could be pregnant. Should I be concerned?

Pregnancy test asap. Bleeding during early pregnancy should be investigated; first thing you need is a pregnancy test. In general, working out is safe through pregnancy. The worry is that spotting so early could be due to an ectopic pregnancy. An ectopic pregnancy can rupture and become life-threatening, whereas spotting while not pregnant is generally safe.
Get preg test. First, things first. Get a pregnancy test done, that will tell you if your need to worry about that or something else.