No period in 3 years...how do I figure out my ovulation?

So I haven’t had my period since May of 2016...I know that sounds crazy. I think it is too! But I have been on birth control (recently stopped as my husband and I are TTC) and I was super super irregular before that. So how the heck am I supposed to even know when I’m ovulating or try and figure it out? I’m keeping my fingers crossed that my body will soon regulate after having come off the pill in October. And yes for those of you wondering, I did ask my gynocologist if this was all normal and she said some girls react differently to the pill so it may have just completely stopped mine. I mean, I’m not completely down in the dumps about not getting it...who REALLY wants their period? But I just want to make sure my body is ok and that I can get pregnant! Am I the only one like this?? Please tell me there are other ladies out there with similar stories!