Do a minimal search on the internet and one will come across dozens of sites that illustrate the linkage between Isis, Ishtar, and the Islamic Crescent and star. I am providing a link to another forum to give you a better idea of how Islam and a 'female goddess' are indeed linked.
Is ISLAM based on PAGAN roots?
I would submit that the recognized symbol for Islam is quite feminine and in ancient times was well recognized as belonging to the goddess Isis/Ishtar.