Waiting for core biopsy results..

I am a natural anxiety ridden worrier so to speak.. so not surprised to be on this message board while awaiting for results!

I'm 27 years old, and a few months ago a mass was discovered in my breast during a chest ct scan for something totally unrelated.. the ER doctor said it wasn't really brought to his attention, meaning most likely something not to be worried about but still something I would want to follow up with. The ER report from the CT scan simply stated there was a mass in the breast with the measurements (all between 2-3cm, and wider than tall).

I got an ultrasound, and the radiologist came in and looked at it and talked to me. She said it didn't look like cancer, but that since it was a little bit on the larger side she would look into whether a biopsy would be recommended vs just monitoring every 6 months. My PCP and her came to the decision to do a core needle biopsy to confirm a fibroadenoma diagnosis. I waited a few weeks to get the biopsy done because I am COMPLETELY terrified of needles. The biopsy experience itself was not bad - I literally didnt feel a thing the entire time. However, the radiologist performing the biopsy was different, and he mentioned something about the borders being a little irregular, so now I am completely freaked out.

this is my report:

Sonography was performed of the right breast. At the 1:00 position scanning5 cm from the nipple, there is a macrolobulated hypoechoic mass measuring 3.1 x 1.9 x 1.9 cm. This corresponds to palpable abnormality. Incidentally noted at the 3 o'clock position scanning 5 cm from the nipple is a circumscribed hypoechoic nodule measuring 0.8 x 0.6 x 0.6 cm.

ACR BI-RADS Assessments: BI-RADS 4 - Suspicious abnormality consider biopsy Palpable abnormality right breast corresponding to 3.1 cmmass 1 o'clock position 5 cm from the nipple; ultrasound-guided core needle biopsy is advised.

Smaller hypoechoic nodule 3 o'clock position 5 cm from the nipple can undergo 6 month sonographic follow-up.

I was supposed to be getting results today - but still nothing. I am really not sure of my family history of BC, but as far as I know - my immediate family does not have any history, but extended family does (multiple).

Any insights are helpful - just want to know whats going on!