BFN !!!!!

Just took a PT and it was negative, i am 11dpo and im thinking its too early. Im having a lot of symtpoms. I got sick out of no where nasal congestion, sore throat, my titties and nipples hurt so bad, i have bad head aches on and off. Extra cm like it literally does not stop. And i feel like i'm starving. Im so tired now I never get any sympotms before i get my period. My period should come on the 25 like it had been for the last 5 months. I feel like im experiencing symptoms right away. When is a good time to test again or sgould i just wait to see if i miss my period ?