Well, if you have had unprotected sex, then you can always get pregnant from that. However, changes in routine (and moving) can also make us irregular and late. To me, it's more scary to let a pregnancy go on that we don't know about than to just take a test and know. So, take a test. Likely, you're late from changes in routine and stress and not pregnancy. But you'll know for sure when you take a test. We always have to be responsible when sexually active and not be afraid to face consequences of pregnancy if we didn't use protection. If you aren't pregnant and don't want to be, get on birth control or buy some condoms. good luck