Please help

Anyone..please help..I would like to ask if there will be no problem with my husband immigrant application if I will be changing my employer. I'm here in the US and I already have my green card and SSS number and I'm just waiting for my agency to deploy me on my employer.But it took so long so I'm thinking to withdraw my contract. Suppose to be we have the same interview schedule.Unfortunately, my husband needs to finish his contract with the other country so he was not able to join our interview schedule. Please advise..Thanks a lot.