Possible Miscarriage?

Please dont judge me. Last week nag PT ako and turns out it was positive. I have an appointment with my ob by friday. Kaso since yesterday, grabe yung cramps ko, then may bleeding. Today, whole day ako nag bleed nakapuno ako ng 1 pad. Then later this evening, may lumabas sakin na blood clot na ganto. Inopen ko yung clot wala naman laman. Possible miscarriage ba to? :(