Bleeding and cramps

So yesterday into today I had light spotting and bleeding where I had a pad on. Had blood work at the hospital and even though I'm only 7wks my Rh is - so they gave me the roghem/rogam shot. It seemed to get a bit better and bleeding went down. Saw my doctor at 1:30pm this afternoon he said cervix is still closed no signs showing miscarriage or anything to worry about. Ultrasound set for tomorrow 10:00am. Got back from the doctor about 3 went to dinner with my husband and got home about 5:30 the bleeding came back with major cramps and I have passed two blood clots ( dug for them in the toilet and appears to only be clots nothing else) it's now three hours and still bleeding.

Has anyone experienced this or known anyone to experience this type of thing and NOT have a miscarriage? My husband says don't doubt but it's kind of hard to be peppy when I'm in pain and thinking the inevitable.

I spoke with my mom and we both feel the same way, if it is a MC the hospital/er can't do much except tell me. So I'm going to monitor and wait it out I guess. I think I'm just looking for a glimmer of hope or something to give me strength to find a positive in this.

Thanks