Pregnant or ovulating?

ok i had sex the day before ovulation,( without any  protection) but now 5days later im gettin mild period like cramps, with no period the last two days! but my period isnt due for another 2 weeks! its mainly on the left side, i have no other signs! is it too early to be gettin signs?? please help, stressing out, and if its just ovulation can u get pregnant if u have sex the day before(again unprotected!) help would be really appreciated! :)