Hi I Thank My Dr Tied Cut Or Burnt My

Hi i thank my dr tied cut or burnt my tubes after i had my son in 2015 due to my ex husband telling him to i didnt sign any paper to have it done and after my c-sec. My ob never told me what he done i was just looking at my medical record and it said encounter sterlizsation what is that ? Now im trying to have a baby and cant what do i do