Hi, I had unprotected sex with my boyfriend on 14th April (day 10 of my cycle) and less than 12 hours later, I took postinor 2. The next day I had a bit of cramping though it was very mild. Today is day 23 of my cycle I'm supposed to be having my period anytime by the end of this week. I feel normal. Am worried because I do not know if the postinor 2 worked. I didn't have any side effects like vaginal bleeding. My breasts were paining yesterday especially the nipples but I don't know if it's a side effect of p2, or pregnancy symptom, or even a sign of my oncoming periods. I am really scared. What symptoms should be safe? Can I take a urine test? What should I expect? Should I be worried? Please help.