breast hypoechoic nodule with ill defined borders

I have a hypoechoic solid nodule at left breast that meausured 1.5 x 0.9 x 1.2 and it increased to 16.9 x 16.2 x11.3 and shows irregular contour and excision biopsy consideration.
The impression says that the nodule has ill defined borders and the caterory says "Left Breast - suspicious for malignancy).  I have to wait 2 more days for my doctor's apointment. Should I be worried??

[zouzi]

Duplicate post already answered.