hi My last period came around 15 July. I took postinor 2 (1 tablet only) a few days before 15 July. Then I ve had spotting/light bleeding around 25 July and again today, 31 July. What could be wrong? I ve also been having intermentrual light bleeding over the past year, occasionally. It doesn t happen every single month but it happens often enough for me to take notice. I m 43 this year and overweight.