Elevated liver enzymes can be one component of HELLP, which is a form of severe pre-E. HELLP stand for Hemolysis, Elevated Liver enzymes, and Low Platelets. It can occur without diagnostically high blood pressure or protein. Elevated liver enzymes can be accompanied by pain in the upper right part of your abdomen, nausea, "general malaise", and other symptoms. I had all of the above, plus my skin turned yellowish. HELLP can move very quickly and be very dangerous, so you want to make sure that your doctor is on top of things.
That said, there are other things that can cause elevated liver enzymes in pregnancy. Can you call your doctor to discuss a plan? I would want to know exactly what symptoms would require a trip to the doctor's office or L&D. They may also want to recheck your blood work to see if things are getting worse. It is possible to have a small increase in liver enzymes that would not be concerning unless the values continued to trend upward.
Definitely call in if you feel sick, get "the headache", experience abdominal pain, have serious anxiety or vision problems, or just generally don't feel well. PE can move very fast, and it is probably better to be safe than sorry since you have some indications that PE could be developing. Take care of yourself! i hope this is a blip and that you can hang in there for a long and boring pregnancy.
Daughter born April 2009 at 35 weeks due to Class 1 HELLP