recently i thought i was pregnant cause i had almost all of not all the typical symtomps but then on friday i started to bleed as if i got my period  i experienced back pain and cramping per usual but my period is very heavy and last anywhere from 5-7 days it's been like this ever since i got my period. on friday and saturday the blood flow was vey slow and barely there. on saturday i had clot like substance come out of me. which when i read people have said it's tissue and normal. today i am barely bleeding. i'm too scared to take a pregnancy test yet... so what do you guys think?