Could Light Pink Discharge Before Heavier Bleeding And Clots Be An Early Miscarriage?

hello, my husband and i are trying to conceive..my period was scheduled to come two weeks ago and it didn't come and instead i got only light pink discharge that kinda looked like implantation bleeding..not too sure. i took a home pregnancy test and it turned out negative. however, my period came (late)... i can't tell if it is actually just a late period or very early miscarriage...in terms of flow, it looks different and there is a little blood clotting