To say the least.... I'm confused

 AF was due today but instead I got it Friday. First it started out brown. Then on Sunday it turned red with cramps. 

Then today and yesterday I had no blood. Maybe some spotting

 I took several pregnancy tests and they were all very faint.i haven't taken a test since Sunday. Which both tests were invalid because they had indents. 

So before I got my period I hate back cramps, boobs were sooooo sore and had implantation bleeding. (More like brown mucus on just one wipe) I usually don't have PMS symptoms so I knew I was pregnant. 

ANYWAYS... I either had a miscarriage or still pregnant. Because I am beyond tired and my back still hurts and boobs are sore. And also have a metallic taste in my mouth. I also feel like my uterus is stretching AND I checked my cervix and it's super soft. My doctor can't even get me in until the 15th and I refuse to go to the ER because they won't do anything for me and I'm not in pain. Also I'm not far enough along to see a thing.