yeah its possible because you carry regressive genes as well as dominant, its easier to understand as a diagram, its less likely as both parents would have to carry the regressive gene.
No idea what my parents are, but my Ohs mum is O+, his dad B- and he is O- as well as most of his siblings. so the most likely combination for my OH would have been B+ and but his mum must carry the rhesus - factor too, so it can pass on.
Im useless at explaining, sorry, my genetics is very rusty ... it was a long time ago lol!