Go to your local bike shop and discuss this with them. They will be your best resource for information concerning the different riding groups in your area. A lot of shops sponsor clubs, and most clubs have various groups within their structure. Often times they have gender specific groups, and if they don't, then you can start one within the group. Once you have become aquainted with the other members of the cycling club, it should be fairly easy to put together weekly Ladies Only rides.The hard part is finding the people who enjoy riding as much as you do. After that, the rest is fairly easy.