Hi....i Had A Miscarriage 2yrs Bak Bt M Pregnant Of

hi....i had a miscarriage 2yrs bak bt m pregnant of 6weeks of pregnancy i went for ultra sound on wed doc told me that there is internal bleeding she advised me to go for hocg injection one i took on we n one on sat...so wil it stop the bleeding. n does it help in preventing miscarriage ?