Hi I m 33 weeks pregnant I have had 2 urine samples sent to the hospital one at 28 weeks and one at 31 weeks both samples have come back that I have a higher than normal red and white blood cell count my doctor wants me to have sti swabs as a precaution wich I know 1 million percent are going to come back clear she didn t really cover what else could be wrong and just said we would look at that if it s still the same after pregnancy I ve been looking on the internet for possible causes and have really worried myself please can you tell me what the causes could be?