Hi. I M 33 Yrs Old. My Would Be And

Hi. I m 33 yrs old. My would be and i had intercouse on 11th jan wen it was the 4th day of my period and usually my bleeding stops on 3rd day as the day gets over. I have slight bleeding till my 5th day n then it cimpletely stops. So wen we made luv on 4th day of my periods i started bleeding. It was heavy blood clots n other liquid bleeding like i have during my periods. So could u plzzz tell me if i need to get a check up done. I had taken a tab named pause500 to stop the bleeding.