my period was suposed to come on Sept 6 but now 4 days later still nothing. I was on the pill Yasmin for 2 yrs and on August 1 I stopped taking it and my last period was August 9. I took multiple pregnancy tests before and after September 6 and all was negative. last time I had sex was on August 26 and we used condoms but only 5 mins before ejaculation. I have no pms symptoms and none of the early pregnancy symptoms. last week before my period I was shoving kleenex in my cervix to check for blood (I thought I was a week late) and once there was a tiny bit of pink blood on the kleenex but nothing on my underwear and nothing after that. could this be implantation bleeding? I understand that because I stopped the pill my period might be delayed but I have no pms symptoms indicating that my period will come anytime soon. Whats happening?