anybody else went thru this before???

So I started my period last Monday, usually go regular 7 days... my last period was regular. my 2 periods before that were 6 and 10 days late. this period I'm on was supposed to be over sunday. I'm flowing as if I just had my son 7 years ago!! just gobs and gobs come out (sorry for the nastiness). It's a year and 2 months TTC so at first I just thought it was the last of all the blood coming out my body from the 6 and a half years of bc, but now my mind is going crazy with all the thoughts! anybody else gone thru this or have advice??? please and thanx!!!