i've had another phonecall now, they say she has no uterus/ovaries etc but there is no sign she has been spayed before (we were told by the rescue home we got her from that she hadn't been spayed) but no sign she has previously had male genitals either....
the vet said said there are a couple of marks which COULD be where tesicles used to be but also could be just markings, and that hes not come accross this before (said it's usually much more obvious which one it is)
then he said he's about 60% sure she's female but 40% she could infact be a he.... poor bunny !!