Protein in urine??

Jalen
Just got back from my 38 week check up and my doctor told me I had protein in my urine. He explained preeclampsia to me and put me on an antibiotic for 3 days. My blood pressure was fantastic and I have barely any swelling. I have been having terrible migraines, nausea, and pains in my belly though. Should he be more concerned than he is??