Miscarriage? *WARNING GRAPHIC PHOTO!!*

Lauren
So basically I thought that I might have been pregnant and then I got my period so like.. yay I'm not.. but my period has never been this heavy before.. I went through a tampon in 20minutes and I've bled through 5 pairs of underwear while wearing pads.. 
When I went to the bathroom tonight I sipped and this was on the napkin.. although this doesn't look like my usuallyblood clots, it almost looks like it's attached and not squishy and can be broken when I move it around like a blood clot normally can 
PLEASE HELP THANKS!! 
Update: took a pregnancy test at the doctors office, negative!