Scared

Mel
I think I've just had a miscarriage... I had excrutiating pain in my abdomen and then like 12 hours later I passed a greyish and red clot that was the size of a 5 or 10 cent piece... 
I have the rod in my arm so I had no idea... 
I had been feeling off for a few weeks but didn't expect it.... I don't know what's going on! Do I need to do anything? I don't know how I feel...