*TMI* I'm wondering if I had a miscarrage? Please help!!

Charlotte
So.. long story but this last cycle has been really weird. I had what I thought were pregnancy symptoms from 5/6 dpo (Ttc 9 months now) I was so sure I was pregnant it really felt like I was. The only thing is I was having really bad cramps for days. I had a negative test at 14dpo and then AF started this morning (16 dpo). I thought everything was normal with AF until the afternoon when 2 large pieces of white flesh came out also with some small blood clots (even though I had a tampon in at the time!) I have no idea what it was, and now I'm wondering if I was pregnant after all but too early for a positive test or just had an early miscarriage. Has anyone else experience this or similar? Please help!!