the negative itself looks like it is "empty". it is very difficult to pick out the pictures on the negative.
Is that normal? perhaps due to underexpose?
i not using bulk roll film.
If it's almost 'empty' then it's likely that you are underexposing. A proper negative should have some almost opaque areas in the highlights, and some 'empty' areas (to the naked eye) at the shadow. Do check your shutter speeds and metering, maybe you forgot to set the proper ISO on your meter? etc.