Razor bumps! What could I be doing wrong?

So I only ever get razor bumps down there when I shave. Never on my legs or arms or anywhere else. I always use this gentle Burt’s Bee’s shaving cream that has coconut oil in it, a men’s razor, and I exfoliate the HELL out of it with this motorized exfoliate brush when I’m done. And after it all I use coconut oil to moisturize everywhere down there. And I still always get razor bumps! What am I doing wrong? I also try and not go against the grain but it’s so hard to tell what direction the hair even grows lol.