Aww, nakaka-alala yan sis, pero honestly it can happen, a few of us tried tracking our cycles and may times nag-spot kami around ovulation week dahil sa hormonal changes or even from cervical irritation. Best talaga na i-check mo na lang with your OB kundi matagal-tagal or maraming dami, para ma-rule out kung normal lang sya or may ibang kailangan i-address, better safe than sorry, diba?