Trying to Conceive after the Depo Provera Shot

Patient: I went on the depo shot august 2012 and I got my last shot september 9th 2014. My husband and I have been trying since october for a baby. I got my period for the first time since stopping the shot in Feb 2015 Should I see a doctor for help or should we just keep trying. Lately my period is a week late and i have symptoms but i get negative test and my period ends up coming.

Symptoms: None