you can also get pregnant if the male isnt using a condom and even if he doesnt ejeculate because the lubrication or "pre-***" has live sperm in it. So if you think you are go get tested also you have 72hours from time of the sex to take a morning after pill, this is readily available at womens health centres, a docotrs or any sexual health clinic,some give it free
That's all it takes: one time at the right time of your cycle. So, yes, if you were ovulating or ovulated within 5 or so days of having unprotected sex, it is quite possible.