Because you have an unborn son, I am going to share with you a story of my family that just occurred last week.
My brother has a wife who is clean. She has been for 3 years. They have been together about 2.5 years. They had a son, and she had 2 children from previous relationships.
She just lost ALL of her children to CPS. Even though she is clean, CPS considers her as having exposed her children to harm by living with an active drug user.
Just because a person is clean does not mean anything when it comes to exposing children to an environment where there is drugs.