I'm 17 years old & I got the implanon implant in November 2014. Ever since I had in put in my arm I have had regular periods. They always come on around the same time until recently I have all of a sudden miss my period. I am over a week late. I have had a lot of unprotected sex. Also I have been feeling movements in my stomach, I have had a little bit of spotting with brown discharge, I have breast tenderness, feels sick from time to time, back aches & lower stomach pains. I was wondering what should I do? Is this normal for implanon? Could I really be pregnant?