Your statistical chances of pregnancy with Stage Four Endometriosis (endometriosis with extensive adhesive disease) and PCOD is probably less than 1% using any natural treatment method (Clomid, Femara or Injectables with intercourse or IUI). That is because you have an abnormal pelvis and this location is critical for passage of the egg from the ovary to the tube. Scar tissue, which is like spider webs, can block the egg from entering or reaching the tube. Endometriosis causes a chronic inflammation of the pelvis which leads to the inflammatory cells attacking and destroying the egg as it exits the ovary to reach the tube. Polycystic ovarian disease is an ovarian dysfunction where the ovaries don't function properly and so there is a resultant hormone imbalance and lack of ovulation. All of these put together significantly reduces your chances.
See my website for more extensive information and explanation of the options available for both Endometriosis and PCOS. I am convinced that with the proper information patients become empowered to make the right decision about their healthcare and can ascertain if they are receiving the best care.
The Fertility and Gynecology Center
Monterey Bay IVF Program