So I've been on the Depo shot for almost 2 years. since i've been on the shot i either bleed for months at a time or absolutely Nothing for months at a time. I got my last depo shot in october 2014 i was due for another jan 20th 2015 during these 3 month i pretty much had a light but constant flow. I left for basic training on jan 20th so i did not receive my shot. of course my husband and i had intercourse the 19th, around jan 24th i stopped spotting completely. it is now march 22 and i have not had any periods or bleeding at all... i know its normal to be irregular on depo but this was kind of weird. is there a possibility of being pregnant or im i worried for nothing?