I was on DEPO for 2 yrs had lil to no periods i got off July 2016 I bleed for like a week an a half. Then I didn't have another one till December 2016. ( Mind you I been in a long relationship for over 2 years I wasn't using any protection). So after I had my period in December on the 15 I figured my cycle was back but noelw January 15 has past an no period but I'm having the systems... Could I be pregnant?