Fertility

So I'm not sure if I'm in the right group but I'm going to share and see what advice I can get.

So about 17 years ago I was diagnosed with severe PCOS and had to get a D&C; done. I was severely obese causing a lot of pressure on my ovaries and so forth. Having PCOS for such a long time caused me to become infertile and I became depressed because I did want to have kids. 1.5 years ago I had gastric sleeve surgery which helped me loose a lot of weight and begin a normal menstrual flow. Now I have hopeful wishing in getting pregnant but every time I use a tracker for ovulation it's never consistent. I want to get pregnant badly. How can I find out if I'm fertile enough being that I don't have PCOS anymore. I'm hitting 31 yrs of age and my time is running out