So had sex unprotected 13days ago... (Ovulated late in cycle) had period 4days later for two days but had had no pain and no clues it was coming which was unusual. I've had cramps for 3days yesterday I had cramp felt wet and when I checked I had watery discharge that was tinted pink! Cramps again today and lower back pain... But no more tinted discharge... This is all unusual for me and I'm not ovukating atm either (opk negative) anyone any ideas???