of course she is always fertile, and you have live sperm in your preseminal fluid. Preseminal fluid is that leaky stuff that comes out of your penis when you are erect and excited, someone else called it precum. You might not have felt like you had any, but preseminal fluid or "precum" does not have the same feelings that an orgasm feels, it is simply how a man's body works. You have it.
So even if you are pulling out, you are still filling her with sperm before you cum.
Yes you are incredibly lucky she isn't pregnant, didn't your dad talk to you about this stuff already?
If you care about her, and her life then use a condom. If you care about yourself, your education, your life and future, use a condom. If you want to be a man, use a condom. If you want to show you are responsible and smart enough to have consentual sex, then use a condom.
use a condom
use a condom
use a condom
use a condom