Ovulation

So, my husband and I have recently started trying to have a baby. I haven't had a period in 6 years because I was on depo (never again, I had no clue how much it has messed up my system), my doctors have given me pills to make me have a regular period and the first month it cause me to have a two week long period while this month it only lasted one day. I am also on medication to get rid of excess follicles in my ovaries due to depo... My question is how do you figure out when you are ovulating when your body is torturing you? My doctor has been a good help but he is hard to understand (very foreign accent) and when I ask him questions I think sometimes he doesn't quite understand what I am actually asking.