I did not have sex this month, I only had some fingering (no semen), oral sex, 69, and masturbation. My ovulation day was most likely occurred on oct 24. I expect my period to come on nov 8, but on nov 6 (at the moment), I woke up with blood on my liner but is not yet heavy. Now, i'm curious if this is implantation bleeding or it's just cause my period is about to start? (i tried on pregnancy tests four times - oct 14,17,25 and nov 6 (today) - and all were negative)