Not from your DDC, but I am a student midwife who looks at lot sof pee sticks!
Well, usually you'll see the chemstrip show other things if you have a UTI. When we see ++ for leuks, we always ask if they could have yeast. If not, and there are no other issues, we assume it's just lots of preggo juices...it happens. And especially at the end, you begin to leak all kinds of stuff. Typically it is never a big deal.
Hope that helped some.