Depo shot leaving long term side effects after

Hey everyone! A friend & I were both on depo-Provera for about a year... We are both off it now, have been for a while now, however we are noticing issues that we never had before the shot (Irregular periods, skipping periods for months). Also we noticed trouble getting pregnant. It took my friend 5 YEARS to get pregnant after depo! And so far I am on a year of trying with no success. Has this happened to anyone else?!