Those with XY chromosomes can skip this post.
I got my first period on LDN (yeah, I'm a modern woman and don't keep them every month) and I had been a bit wary, as some people with MS had said that LDN had made their periods heavier. But I assumed that it was probably a normalizing effect - a severely ill person would often have light or no periods, and anything that made them more healthy would affect that. I guess I might have been right. Definitely no change for the worse, perhaps even a slight change for the better (from a fairly normal base level).
(Damn Blogger being buggy again and inserting line breaks where there are none, can't get rid of them in either HTML mode or the normal text compose mode.)