How would i be able to tell if i were sterile?

Testing by doctors: To see if a person is sterile, tests are done by doctors. For men, semen analysis can tell how many sperm are there, and whether they are normal or abnormal. For women, doctors look at hormone levels, check ovaries for egg follicles, check uteri and fallopian tubes for obstructions, etc...

Sterility: It is determined by sperm analysis performed by a licensed laboratory-preferably a fertility laboratory for best quality results. You would need a referral or order from a physician.