Miscarriage can I? Should I?

I just had a miscarriage on Saturday night. I was in the bathroom and just saw a big blood clot I couldn't believe it was that it was the white circle with the curly placenta .I was so upset we were at a bbq with some friends came crying to my husband went home and told him the news now I don't even want to come in contact with him. I got sick is that a bad thing? I have cramps I have stomach pains ?? Do I need to go to the docs? Could I get pregnant again with out going ?