Miscarriage ?

I never took a test but there is a great chance I was pregnant I didn’t take my pill for 1 week and a half and I had sex before missing pills and after ,the week my period was suppose to come it was two days late and I bleed for a full 7 days and I’ve had heavy periods before but never bleed through a super tampon and underwear, or have blood dripping out i had clots for the whole length is

it possible that I’ve had a miscarriage and what should I do I’m nervous ? Please no negative or rude comments or memes!