scare!

Emily
hey, my boyfriend and I have sex about 17 days ago without a condom he pulled out and I'm on the pill but I'm still nervous I'm 4 days late for my period but I had period symptoms for about a week, discharge, cramps etc. I took a test about 4 days ago it came up negative but I still don't have my period I'm thinking I'm just stressing myself out! Does anyone have any tips to destress and relax, I'm taking another test tomorrow.