Has anyone had misdiagnosis fibroadnoma following biopsy

Hi 

I found small lump on left breast and had mammogram last Wednesday then they did another mammogram as consultant wanted closer look on right breast then they did ultrasound and then they took biopsy think core one, it made staple sound three times  and said they found what they believed to be fibroidnoma on right breast but expect biopsy to confirm this or a diff benign lump that may need surgery can anyone advise if they ever got it wrong for them or do you think I’m over worrying?  They told me I won’t have results until 7working days after with weekend that will be 9days, due to find out in three days the waiting is so hard.

 

Thankyou x