That looks like a peloric phalenopsis bloom. I can't say if your specific plant will always flower the same way... but there are stable clones that produce peloric blooms each time. If all your blooms turned out to be peloric, it may suggest that's a stable genetic trait of your plant. Perhaps more experienced growers can chime in on that.
Most orchids have bilateral symmetry, meaning that if you cut the flower in half, the two halves would be mirror images. Sometimes things go awry and flowers have radial symmetry, meaning that they have symmetry around a central axis. When plants that normally produce flowers with bilateral symmetry produce with flowers with radial symmetry, that's called pelorism.
Google "peloric phal" and you'll see tons of fun photos. like
peloric phals
I hope that helps!