Thank You So Much seetpea03 :)
It's very common for the depo shot to cause you to miss your period and you may not have a period at all while on the shot. Though if you are really worried, take a home pregnancy test to find out. You can take a home pregnancy test 2 weeks after having sex and get an accurate result. And if you have any questions about your birth control(the shot), don't be afraid to call your doctor and ask questions.