I'm Very Concerned Because My Daughter Is 5 Months Pregnant

I'm very concerned because my daughter is 5 months pregnant and she didn't know she was pregnant till last month as she smoked pot and I know was using Cocain as well and it's been a month and she isn't any longer and now we heard they test the cord blood and even though she won't do any drugs the rest of the pregnancy how far back will cord blood detect this pot and cocain she used and risk losing her child ?