8month of trying to convince and nothing 😭

We have been trying for such a long time I'm 33y old I have irregular periods , they do less for 5 days then I will do my ovulation test and it looks like I am not ovulating  I have periods every 2 weeks , 3 weeks month a part I had a IUD for 10 years had my first and only child over 11 years ago , and it was so easy to get pregnant back then now nothing .... Help what should I doÂ