i don't know if im pregnant

[inocence03]

ive been haveing little cramps in my lower abdomen, little pains in my lower back. i've been more hungry and tired then usual,i get nausea but it goes away after i eat something, and i can't eat what i used to eat, it all makes me sick. i'm being extremely moody, and my breasts are tingly.
i had my period on the 24 of february, but it just a day and the next it was spotting, and it was early. i had sex on the 18th of february.