Could someone help me understand this ultrasound report of the left axilla

[GinaL17]

I've have a swollen/tender area in my armpit for around 5 weeks. I don't really feel a lump it's just a swollen area and it's painful/tender and aches when I move (hurts to put on deodorant) I'm so confused by this ultrasound report. Especially since the wording is off in the last sentence of the "Findings". The ultrasound reads as follows:

Findings: Ultrasound examination is limited demonstrating an 11.0 X 0.7 X 0.8 cm hypoechoic nodule. This is not cystic. Cysts not have a typical fatty hilum with associated with a benign lymph node.
Impression: 11mm soft tissue nodule of the left axilla of uncertain etiology. CT scan may be helpful to definitively evaluate.  

I am 4 weeks pregnant so my NP said I should just wait until I'm not pregnant to have the CT scan and that's 8 months away! I don't think I can wait that long. Any ideas on what it could be? What is the report saying about the lymph node? Are there any tests I should be asking for that's safe for pregnant women? My Ob is not aware because she will not see me until I'm 8 weeks pregnant. Any help would be so appreciated!