Every appointment of mine I had a urine test done. You should speak to your Dr about it.
Hmm im almost weeks and only ever had the one :/
They should be doing it at every visit to check for your glucose levels, if there's any protein, luekocytes, etc.
They're checking the urine for protein. If protein is spilling over into your urine it can be indicative of health problems such as pre eclampsia.
They test for infections and such
Usually they check to see if you have any sugars in your urine that shouldn't be there