Worried....

My spotting has increased to slight bleeding in the past few days with some mean cramps. Last night, a tiny, bloody clot came out (I know, TMI...but too bad). I'm so confused. Everything I read online says not to worry too much but my goodness, it's a bit alarming when you see something like that....especially when it's accompanied with constant cramping. Anyways, I finally called my doctor this morning and I have an appt this afternoon. Let's hope everything is fine and I'm just being a worrywart for nothing.