We pull out but don't use any condoms and i'm not on birth control. i still have a high chance of not getting pregnant right?

Wrong: Pulling out w/o wearing condom or using birth control is what leads to babies & catching/passing sexually transmitted infections. Don't do it!

Ovulation: If you have regular cycles, he has a normal sperm count, and you are having unprotected intercourse, you can get pregnant even when he withdraws before ejaculation. If you miss your menstrual cycle, you should take a pregnancy test to find out if you did get pregnant. I would advise using some form of birth control if you are not trying to get pregnant now. Using condoms will help to reduce std.