Anytime you have sex, especially unprotected, you risk pregnancy. There is no safe days to engage in unprotected sex. If you're already late you can take a pregnancy test at any time with first morning urine. In the future, make sure you're always using protection every time you engage in sexual activities.
U might be pregnant.. i know i had mild cramping 6 days before my period...peeed on a stick and bam positive! I took the first response know 6 days sooner..