B.K.
if it really is a miscarriage there is really no way to stop it. But it could be implantation bleeding. I had it with both of my children. My first at 9 weeks and my second at about 11 weeks. I had cramping all throughout my pregnancy and I passed clots when I had the implantation bleeds. The ultrasound will tell the story. There is no way to tell otherwise. Good luck.