Hi, My last day of period was May 25th 2014 I had sex with my fiance on May 28th (evening) and 29th (Morning). I took P2 on 29th mid morning both pills, I had back pain and lower abdomen pain on June 2. The day of my ovulation June 5th today I'm spotting. What the pill effective and why the spotting during ovulation? Are these signs of pregnancy?