This is a two group randomized design that will compare a novel therapy package (i.e., Research supported treatment intervention, Contingency-based voucher incentives for the male partner's drug abstinence, Specialized MI couples counseling) to standard care for helping drug using partners of drug dependent pregnant women obtain and maintain drug abstinence. Participants will be followed for 22 weeks and have scheduled twice weekly urine sample collection and all participants will have follow-up interviews post-study entry.

Inclusion Criteria:

• are 18 years of age or older on admission;
• Pregnant as determined by sonogram results
• have a current sexual partner who they have seen recently at least 3 times a week
• male partner has regular alcohol or illicit drug use (at least 4 of 7 days typical use) and is not incarcerated.

Exclusion Criteria:

• woman or partner report current suicidal ideation
• woman or partner meet diagnostic criteria for a current DSM-IV Axis I thought disorder (i.e. schizophrenia)
• woman or partner demonstrate significant cognitive impairment that precludes them from completing the initial assessment battery
• woman has evidence of physical violence or abuse