Weird noise when turning steering wheel

Weird screeching/groaning/whining noise when I turn the steering wheel, really loud too. Bad power steering pump or just low on fluid?

Low on fluid, just filled it and noise is gone. My only concern is that this is the second time in like three months that I have to refill it, that is not normal is it?

Also, there has been no evident leaks under the car nor burning oil smells of any sort.