I did not reply because somebody had posted a complete reply, with practices that are drawn from yoga, to your question... Unfortunately, the subject of fertility and sex is such that, when a woman is writing it, however scientifically and clinically, there is a tendency for lots of silly queries (since this medium offers that anonymity)to crop up amongst genuine ones, such as yours perhaps. So I am sorry that whatever I have had to say on that subject is said fully in that column. If net readers choose not respect the dignity or intention of the writer than unfortunately we have to chose certain precautions to preserve these. Therefore, my responses are now confined to such subjects where the scope for such irrelevant or frivolous attention is not drawn to the writer. I thank you in advance for your understanding.