Calling all ladies who have Endometriosis..

Jennifer • Been ttc #1 for 4 years my fiancé is 32 and I`m 32 will be going for IUI soon 😊
How do u find out if you have it??  I'm on my 2nd cycle of clomid and having painful cramps also I have been trying for 3yrs and I'm just wondering if maybe the doctor and I missed it..