Should I still have hope for this month

Dana ☀️ • 32. Married 7.12.13 • Mommy to Elliott 👧🏼 3.5.16. Due with baby girl #2 12.12.18
I am currently 4 days late for AF, I am having breast pain, lower abdominal pulling and I am beyond fatigued. I most recently tested 2 days ago and got BFN but still no signs of AF.  How long should I wait to test again? Should I still have hope for this month??