Hi , So I`ve Been On And Off Depo For About A Year Now , I Started Depo For The Very First Time In Feb 2010 Where I Went The Whole 3 Months &` Received A 2nd Shot In May 2010 Where I Also Went The Entire 3 Months Up To August 2010 Where I Then Decided Not To Go And Receive A Continuous 3rd Shot Because Of The Weight Gain. From August Until November 2010 I Was Not On Depo But I Had Really Bad Bleeding Because Of Depo Being In My System And From Missing My 3rd Shot Back In August.So In November 2010 I Got Back On Depo To Control My Bleeding, After Staying On For The 3 Months Up To January 2011 I Discontinued Depo Once AGAIN Because Of The Weight Gain. Now Its March 2011 And I Haven't Been On Depo Since, I Recently Had Unprotected Sex With My Boyfriend AndUsually When I Come Off Depo I Bleed For Long Periods But Since I Had Sex The Bleeding Stopped ! Could I Be Pregnant?

There is no way to tell without testing for pregnancy. Is it possible--yes. Its also possible that your on/off use of Depo has messed with your system a bit.

Around 2 weeks after you had unprotected sex would be a good time to take a HPT. If you know when your perioid should be due, take it once you are a day or two late.

I Took A test & it was negative but I feel as if the depo could havve effected the results

I Took a test and it was negative I feel as if the depo could have affected the results is that possible ?

Pregnancy test aren't always accurate early on. There's also a great deal of room for human error to make the results invalid.

Wait another 2 weeks, test again. Make sure to follow the directions on the test exactly.

You could also go to your doctor for a blood test.