no urges to pee


I'm 27 weeks and so far don't get that HAVE TO PEE feeling I drink over a gallon of water a day but still don't get that intense urge to pee like other people do. I had an ultrasound a couple days ago and baby girl was sitting on my full bladder the ultrasound tech kept asking me if I needed to run to the bathroom and I told him no that I had no real urge to pee. Not sure if there is anyone else out there that still has a bladder of steel