Tilted retroverted uterus pregnancy

Hi everyone I am currently 12 weeks and a few days pregnant and have a tilted uterus have had several other scans during this pregnancy and has always been like it . Anyway what I'm wanting to know is if you have had one when did it correct itself if it did at all? And was there any complications or anything in regards to it. I have terrible back pain could this be a reason ? Any help would be great thanks in advance