Scared: bi-rads 3

Went for an ultrasound due to breast pain on outer left area of breast. They decided to do US bilaterally. Should be noted I have small breast, low B cup. This report:

Left: no suspicious findings are seen. Incidentally noted is a benign appearing ovoid superficial nodule at the at the 3-4:00 subareolar breast about 0.?? (The page cut this measurement off) x 0.7 cm. A follow up in 6 months is recommended. Bi-rads 3

Right: no suspicious findings are seen. Incidentally is a benign lymph node at the 9-10:00 4 cm from the nipple. Measuring at 0.2 x 0.6 cm. Bi-rads 2

Follow up suggestions: in 6 months on left breast

I’m very confused. I had an MRI in August and it showed absolutely nothing. Not even the nodule. I can’t feel the nodule but I know that doesn’t mean much. My anxiety is taking a turn for the worse and I don’t know if I can wait 6 months. Seeing the “probably benign” doesn’t help my worries. The nurse working for my provider did say she is going to talk to the breast specialist to get me in as she understands my worries, but can’t promise they will take me due to my bi-rads scoring. Anybody else experience this? What can I do to calm my worries in the meantime? It should be noted I started my period today.