11dpo

Nicolette
Okay so according to my chart I'm 11dpo.
I got a negative test at 7, 8, 9, and 10dpo. I tested this morning and this evening both bfn also. I am a POAS addict I know! 
I feel like I'm pregnant. My legs are sore, pelvic pain, increased sense of smell, bbs sore and extremely emotional. 
I know I could be making myself have these symptoms but I just feel like I am. 
Should I give up now or is there still a chance?