badger I have had what the midwife and docs suspect was a UTI. Just waiting on my urine test results as the more obvious symptoms had resolved themselves by the time I got a doctors appointment, and they didn't want to give me antibiotics unless absolutely necessary (only because I've already had one allergic reaction during this preg- I think it's quite safe otherwise?)
My symptoms were quite pronounced for a couple of days- painful to pee, a bit like cystitis- and noticeable cramping straight after, then dull ache after that for a little while. I was also coming down with a feverish cold so it was all a bit confusing as to what was causing what to be honest.
I asked the doctor if a UTI could be problematic and he said not so much at this stage (I'm 15 weeks) and they are incredibly common for us (lucky us) but it's important to treat it if it is identified as you don't want it laying low then rearing up in later pregnancy. It can also increase any nausea / vomiting in some cases. Hard to distinguish if you're still suffering from that anyway, but I noticed my nausea got worse again!
Try not to worry- just make sure you're drinking lots of water to help flush the bladder, and I was advised to stay on the loo for another 30 seconds after I'd finished peeing, and try again. It's surprising how it gets trapped in there when you think you've got rid of it all. Takes a while to all filter out under the circumstances! Not fully emptying the bladder can be one of the causes as bacteria builds up.
Oh the other thing the doctor said was that protein is commonly found in pregnancy pee so that isn't a confirmation alone. It's great that they're testing yours further though. Nice to know they're thorough!
I'll let you know what my test results are tomorrow- good luck with yours- hopefully you'll be fine!