I use condoms paired w pullout method & i have never busted inside of my girlfriend. plus none of the condoms have ever broken. likely for pregnancy?

Condom failures: Condoms are manufactured under strict guidelines which vary with the type of material used. (latex versus sheepskin). That being said ,condoms can and do fail by leaking or rupture. A leak will not usually be detected by the user, and the "pull out" method does not account for the sperm that are indeed present in the "pre-cum". So, there is always a chance for pregnancy in your scenario.