Had sex sept 12th was due for my next depo-provera shot 10/29/14 its been a week past & i haven't bleed usually i do when i miss my shot could i be pregnant?

Pregnancy Test: Please do a pregnancy test. That will give you your answer accurately and right away. It is common to not get a period even if you miss your Depo Shot.

Late bleeding: Check urine blood HCG since by now it should be positive if you had sex on September 12. if negative consider sonogram . That being said hormonal birth control is associated with menstrual irregularities.