Bith contal shot

Jessiey
So my hubby and I have been trying for a lil one since 2012 and I was on the shot for 2 1/2 years and was having troubles getting my monthlys regularly so I was on provara for couple months and I quite to see is my body would do it on its own as of dec2014 I fianlly started getting them every month on my own its now the end of October 2015 would it be becuse of the shot that we are having troubles getting preg....