Is there a chance she can be pregnet?

Ok i had anal sex today. me and my girlfriend jst had like 5 mintues into anal sex. then i felt something snap. i checked and the condom was ripped. it riped because it wasn't lubed as much. but i never ejaculated inside her or ejaculated at all.when i saw it was ripped i jst took it off n got a new one. i just need to know if i have nothing to be worried about. SERIOUS ANSWERS ONLY!