My bf and I have protected sex and have never NOT used a condom. We always check the condom when we're done for rips or tears which i never has. But now im 3 days late for my period. I took a cvs home preg. test and there was a dark blue line in the rectangle where it should be for non-preg. results but there was also a very very faint, almost invisible line in the circle part which indicates pregnancy. i dont see how i would be pregnant. i have gotten that result before and not been pregnant.