Not compatible but we're together for long

My husband (just got civil wed last May 19, 2018) but still planning to get married on church either on January 3 or January 7, 2019, as that are the only available dates the reception venue we like is available. My DOB is Aug 9, 1977 and my husband is March 8, 1986. Which date is better for us to get married? What's our marriage and financial future?