[Kumagoro]

Pregnancy tests aren't always accurate, but I think in this situation it's VERY unlikely that you're pregnant. If you've been worrying about this, despite the fact you used condoms, it could be stress that's making your period late. Some pregnancy tests are most accurate at certain points in your cycle, such as a few days before your period is due. But once again I think it's quite unlikely that you're pregnant, and it's best to go and see a doctor to find out what else could be happening.