A nurse is caring for a client during the second trimester of pregnancy.After reviewing the client's blood work, the nurse notes the client is rubella non-immune.When should the client be offered the rubella immunization?

Advise the client it is safest to administer in the third trimester.

Advise the client it would be best to get the vaccine during her next attempt to get pregnant.

Advise the client it is best to receive the vaccine immediately to minimize risk to the fetus.

In postpartum, prior to being discharged from the hospital.