Don't panic, a high WBC count is a very natural response of the body during pregnancy. Just show the reports to your doctor to check if any mild infection is there.
Haan na, even my report showed high WBC and I got so scared! But doc told me it's quite normal during pregnancy, though you should let your gynac see the report.
I felt so anxious when I saw the high WBC count in my first trimester. My doctor explained that our bodies are working double, but they did a small urine test just to rule out infections.
It's totally normal for WBC to go up because of the physiological stress of pregnancy. Just share the CBC report with your gynac on your next visit to be sure.