here, the sentence received for drink driving offences is largely dependent on the level of alcohol in your system at the time the offence was committed. The higher the level of alcohol, the harsher the penalty.
If your urine sample shows you were under the legal limit and the fact that you were uninsured comes to light you may be charged with driving with no insurance which carries 6 penalty points and a fine.
If the urine sample shows you were over and the fact that you were uninsured comes to light, it is likely that the fact you were uninsured will be classed as an aggravating factor to the drink driving offence rather than a separate offence.
Let us know how you get on.