Protein in urine? Preeclampsia?

In my first pregnancy I had preeclampsia and my doctors MISSED it! So it turned into eclampsia and resulted in me having two grand mal seizures. Fast forward to now, I'm 17 weeks pregnant! This past Wednesday I had a doctors appointment and the nurse in the lab told me I had a "trace" of protein in my urine. My bp was 116/62 which is fine! I had already seen my doctor at this point so I'm just curious if this has happened to any of you? Should I be concerned that this is the early onset of preeclampsia?