I had my 1st breast images done and I got a BIRAD Cat 5 score back

[Charrickert]

I am 49 and I just had my first mammogram and ultrasound, followed by biopsies of my lymph nodes and masses in my left breast.  The imaging reports both said I was a Birad Catagory 5 - Highly suggestive of malignancy.    Then the day after the biopsies I went to the ER for abdominal and back pain.  Cat scan and blood test all came back totally normal except for the masses in my breast and under my arm.I am really scared, but I also feel like there is no way I have cancer if my cat scan was normal (other than the masses I know about) and all my labs were normal.  I should get the biopsy results tomorrow.  What does everyone else think?  Thanks   Also, my family has no history of breast cancer and I had babies at age 40 and 42 and nursed both of them.