Im 25 years old and I am not on the pill but always use condoms as protection. My boyfriend and I had sex 3 days ago, using protection. Since then I am experiencing some discomfort. Particulalry in the mornings , I get a burning sensation when I urinate , and then its like having a kidney infection I keep having to go but nothing happens. I am also experiencing bad cramps like period pains but no period, feeling bloated too. I am not due my period for about a week, although since I gave up the pill a year ago they have been quite irregular. Im just wondering what this could be if anything?