First Breast Biopsy— with guided ultrasound

Hi everyone.  I went for my annual mammogram two weeks ago.  I was told I needed to come back and have an ultrasound.  Now I need to go back in three weeks and have a biopsy guided by ultrasound in my left breast.  What they are seeing doesn’t look like a mass (although I’m confused as to what they are seeing).  I’m TOTALLY freaking out.  I’m 46 years old with no history of breast cancer.   

A little background for you.  My mother just passed away from pancreatic cancer 5 weeks ago.  She was diagnosed on Dec 3rd and she passed at 77 years old on the 28th of December.  You can say that the C word is really making me anxious.  I’m trying to deal with the loss of my mom and now I I have this thrown at me.  Overwhelmed to say the least.  I know it might be nothing and I’m trying 

not to get overly upset about this but it’s so hard.

Any experience, words of wisdom or advice would be appreciated.  Did I mention that getting a needle in my breast is scaring me a bit too?

Thanks guys for your help.