So are you saying that you didn't actually have sex or you used the pull out method? And you did what every day.....actually had sex or?
I'm a little confused. If he wasn't inside of you at all, then of course you can't get pregnant. If he was inside, yes, you are right to be worried about getting pregnant, even if he didn't ejaculate.
You could just have PMS. IF you don't want to get pregnant, you shouldn't be fooling around like that, but I think you already realize that. If you miss your period, you'll need to take a test.