Had a miscarriage before but this seems different

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I am wondering if each miscarriage is different by stages ?

I had one before bled allot to my knees

But ...

I had three faint positive tests and now looking like I’m having implantation bleeding or miscarriage?

It looks like implantation same blood I saw with my other pregnancies.......

And I am late on my period I took the tests awhile ago and posted them previously