Hello! I got my last depo shot the 19th of January and I got it in the recommended time which was the 15th through the 19th which by the way was my 4th depo shot. I had sex just a day or two after that and he ejaculated in me. Today, February the 11 I have noticed my above my left breast and around my armpit had started to become tender. My breast isnt particularly in pain but around it is. I was wondering could I possibly be pregnant? I got my shot within the time period so I shouldn't be right? I'm a little nervous because my breast or around my breast normally do not hurt. I am worried I could possibly be pregnant. What do you think?