I want to find out my fertility level. What is better, ovulation test or fertility test?

My biological mom is very very fertile. and I want to know how fertile I am. I know that 1st response has a few. I was reading up on it and it seems the fertile test just tells if you can or can't get pregnant. What is the better test to take to see how fertile you are? I don't want to know just that I can get pregnant I want to know how fertile I am.