I thibk i had a miscarriage?

Ive have used the pullout method up untill two weeks ago, i got an implant, my period eas late by 16 days and i just suddenly started my period with no symptoms i usually have, i was also throwing up for 4 days leading up to today and then this came out?

I have had a miscarriage before but it wasnt nearly as much tissue as this and i dont have clots or a hevy flow on my usual period any thoughts?... i want to know because if its happened twice i will probably need to get it checked out seeing as im only 15..