Miscarriage

I'm not a professional or anything but I'm over 100% positive I had a miscarriage. I wasn't even sure if I was pregnant I had slight feelings I might have been but it wasn't time for my period or anything. I have researched so much stuff about a miscarriage and I had a few symptoms, and also the attached picture is bascailly identical to what I seen. (Not my picture attached)  I also feel like nobody would believe me as no medical professionals were involved😓 My boyfriend does believe me though and supports me.