It certainly doesn't mean you are pregnant, but it means you could become pregnant. You typically need to wait until your next period to know, if you miss it, there is a good possibility you are pregnant. But don't stress about it too much! Stress can really mess with a woman's period, causing it to come late and cause even further stress.Look into your local health unit for birth control options for next time. Most give out free condoms, and some provide free, or reduced cost birth control.