I am 29 years old and pregnant (21 weeks), I went to do an urine test at the hospital yesterday as I was havin vage symptoms of bladder infection (no burning sensation or pain when urinating but tummy aches and tingeling feeling after urination) It came back with no white blood cell, but blood in it, they have send off a culture which I will get the results of on Monday, but I went on the internet to fine causes and got freaked out. I dont get infections alot, and my urine was not dark or bloody (as it sometimes it, bur never with any other symptoms) I know I do not drink enough durin the day, but what is the most likey cause of this?