The high wbc is a little concerning and they will run a cbc to check for infection. However the low rbc is most likely normal you will need ro up your iron intake.
I don't know what any of that means, unfortunately, but the change in emotions part definitely could be hormones.
12.8 isn't very high in pregnancy. You are more likely to have slightly elevated wbcs during pregnancy because it is foreign and your body sees it as such. I am guessing your dr isn't going to bat an eyelash as that. Low rbcs in pregnancy is common too. I would be more concerned about your platelets and hemoglobin and hematocrit. (L&D RN)