Clots? Tissue? Could I be having a miscarriage? WARNING: PICTURES TMI

I’ve been having cramps in my lower abdomen and back which are accompanied with bleeding. While I was in the bath I noticed something coming out of me which is the picture attached. Later while using the restroom I noticed another clot looking thing after I wiped. I called my OB and will be going in on Monday but she asked if I had passed tissue or clots. I have no idea what’s the difference. What do you guys think this is? I’m supposed to be about 7 weeks pregnant.