Cloudy pee even after antibiotics

I recently had my third round of three days of nitrofurantoin in two months for UTI’s caused by sex. The first time they worked well, the second time less so and this time my pee is still cloudy and I have an aching back.

Should I wait a few more days and see if it clears up or make another GP appointment? My urine was sent off to be cultured a week ago and they haven’t gotten back in touch which they usually do when it’s clear.

Also, I was given 100mg nitrofurantoin to take post sex but now im starting to doubt they’ll even work (haven’t used them yet bc I’m not 100% sure I’m well enough). Are they any alternative antibiotics they can prescribe me?