pregnant but not?

sooooo my boyfriend and i did the deed with a condom. because heyyyy safe sex. but anyways we did the deed he pulled out before he finished just to be extra safe but i'm still a week late and im really paranoid. i don't feel sick in the mornings and i'm not going to the bathroom more than i normally do so i guess the question is just am i really just a week late? i need more than just myself assuring me that i am.. please help.