Blood clot 10days before my period while pooping (after constipated for 4days)

Hi all mummies! I experienced abnormal bleeding with quite huge blood clot when I'm pooping after constipated for 4 days. There is no more bleeding after that.. it's my first time experiencing this as I do not have blood clot normally during my period. And they're 10days early. I'm feeling more and more cramps down there. I had slight fever in past 2 days but it recovered after I took panadols. Can anyone pls tell me what's happening. I'm so worried .. what's happening to me. My menses has been regular too.