AF due oct 16, still not here

Taylor • Nursing student 💉 Mama to one sweet little boy 👦🏼 Married 1-30-2017 💕💕💕💍

Took a test fri oct 13 that came back negative, took a test today oct 18 that came back negative...with my first I didn't have a positive until I was abt 6/7 weeks along, could that be the case this time around? My symptoms are sore/tender/full breast that increase each day, and lower back cramping...cm is clear, cervix is medium height, closed, and firm