Birth control

Hey everyone! I am on the pill that is a 21 pill pack and take them every day with no placebo pills as instructed by the doctor and the pharmacist. I’ve been on this pill for nearly two years and haven’t had my period for almost all of that time. During my last visit I mentioned this to my doctor and she said that it was perfectly normal I just have to be more mindful of pregnancy (which I am I like to take a pregnancy test at least once a month) I’m just curious if because I don’t get my period at all is there any chance that pregnancy could occur if I’m not ovulating and getting a period after? Or if anyone else if using the birth control pill Junel and has experienced something similar