Uti ?

So i did these this morning cause I'm having a bit of burning and like I have a few drops of pee left after going could this be a uti ??? When I was pregnant they also found traces of leukocytes but never mentioned worry about it

I did go last week to my dr cause I had like bright yellow discharge and she said since I wear pantyliners everyday that it could be causing the discharge could that be it as well ? And I do tend to hold in my pee a lot 🙈