Still a chance?

Jenna • "Cuz baby I`m scared to lose you" Taken 10.14.15 ❤️
So I'm 4 days late. On 17dpo. I have egg white stretchy cm. I have the sensation I have to pee every half hour and I sit there for like 5 minutes sometimes waiting. I got a negative blood test at 10 dpo and BFN home tests too. I hated tested in a couple days. Should I test again? Is their still a chance I'm pregnant?