Depo shot-pregnancy

I was put on the Depo as a young girl (about 14/15 years old) and stayed on it until January of 2020. Now at the age of 19 I’m so scared of what it has done to my body, and I wonder if I’m infertile. I was wondering if anyone had any positive experience with being off the Depo shot, my period is now pretty regular, and my and my fiancé are not having protected sex. Which makes my fears grow larger that I am infertile.should I make a gyno appointment to see if they can tell if I am fertile?? Please help???