Cocaine stays in a pregnant women's urine for how many days?

'''Cocaine can stay in the bloodstream up to 72 hours. It can be detected in your urine for '''3 days after single use. Constant use can be detected in urine for '''12 weeks depending ''''''''' cocaine can be spotted in hair up to about 90 days.

And this looks like its going up to approximately 25 years after having used it only once. Being pregnant means that some of these indicators may end up in an innocent child.