Hi, Im 33 years old and have been on birth control since I was 21.  I recently changed from Nortel 777 to Orthro Novum 777 which I believe is of no difference since its generic. Anyway I usually get my period every wednesday morning but yesterday although I have the dark circles and aches, I had a slight spotting when I wiped but nothing on my pany liner. Thursday a dot on the liner and very faint while wiping. Its Friday now and nothing.  I have not had sex in over 6 months so I know it cant be pregnancy but just curious if this is normal due to the length of time on the pill. Should I call my DR, has anyone had this experience before. It is kind of freaking me out.