It could be a UTI (urinary tract infection) go to the doctor and they can do a urinalysis and find out what#039;s wrong and give you some medicine. If you can#039;t get to the doctor right away then go to a drug store and buy either some AZO pills for the pain or cystex (my favorite because it doesn#039;t color your urine). Do you feel like you have to go a lot (like every couple of minutes?) but when you go it#039;s only a few drops not much that comes out and what does hurts real bad? your period coming up wouldn't have anything to do with this.
Go to the doctor and get it checked out. My uti turned into a kidney infection and I was in the hospital for 3 days, it's not safe to let things like that go. The azo and over the counter meds just help the pain they don't get rid of the infection. I leaned that the hard way.