For example birth control, you see you could use the same argument, you could say oh the Catholics say birth control is unnatural and we know they have a whole position on that and yet the data on infertility shows that in fact most women generate antibodies to some sperm, so the, those datas suggest that actively discriminating against sperm on the part of the women is actually natural and all that is happening in modern birth control technology is that women are developing or building on a natural er foundation that is already there namely to be choosy about when they become pregnant and by whom.