problem helpp!!!

im 17 i just had my baby on the 16 of October my babys father is 21 he support the baby he buy diapers and gives me money ... but my mom does not want to let him see his son what can i do she is constantly harassing me that if i leave with him ir if he just want to take me to dinner if i take my son along she will call the cops and put him in jail ... cuz hes older but he did not rape me or anything i decided to have sexual into course with him but never had an idea that we were gonna get pregnant but wat can i do i feel so sad that he cant be with his son cause of my mom ... pls help can someone research and let me know i live in the state of utah thank u