short periods

[coffee]

this monthes my period is only 3 days then the blood stops

does that mean my ovulation day will come before its regular time?

[atomic sagebrush]

No. The length of periods is not related to when ovulation happens. Many people have 3 day periods and are perfectly healthy, with regular cycles. I have always had that length of period and I have four boys and got pregnant very easily with all of them, and always ovulate CD 14.