worried sick

So I had protected sex with my boyfriend; he used a condom the whole time and also pulled out, but I'm not on birth control pills. That happened about a week ago and I'm just freaking out and hoping I'm not pregnant. My period isn't supposed to come for a couple more days but my stress level has been through the roof lately, and I feel like by now I should already have symptoms for my period. I'm just extremely worried and I wish I could take it back; i even felt a bit Naseaus today for a small period of time, and dizzy a lot of the day...I don't know if that's just my stress getting to me or not. I'm so worried it's destroying my body :( I've even tried to induce my period with parsley, lemon, tea and honey, and other methods but I still feel no symptoms. I'm just so scared, sorry to keep saying that😱 someone please offer me some input!