Just ask your local priest from your parish to help you, and if he can't, just go straight to the diocese and explain what you are doing.
I am assuming that you are having some kind of civil or non-Catholic marriage, perhaps a Ukrainian Orthodox one or something else.
In any case, explain your situation to the priest or diocesan office. They can help you to move forward toward having your marriage blessed in the Catholic Church. Most likely you will either have to have a priest present or have an additional blessing within the Church after the fact, but all your circumstances must be considered.