I have a dumb question

so I had sex the 25 of May, I was drunk and barely remember anything and it was a hookup. I am on the Skyla device but it’s been about a year since it’s been checked. I have been feeling nauseous lately and my urine is super dark and has a smell. Do you think it’s possible pregnancy or just a UTI? I haven’t been peeing more than normal and the only symptoms I have are lower back pain, some lower stomach pain and the urine and sometimes some nausea. Is it too early to test? and normally I don’t have a period on this birth control so it’s hard to tell if I could be pregnant or not lol. thanks in advance