FYI:
After years of suffering with infertility and every month finding out I'm not PG, DH & I became frustrated. We searched out and started Infertility treatments. For the next several months, no PG and diagnosis "unexplained infertility". No problems were found with either of us.
After taking a break from the infertility roller-coaster, I was reading an article about Woman's Health and overlooked health problems that are sometimes caused by Thyroid (over or under active). Further reading revealed that I had nearly all the symptoms mentioned. At the time I was in my mid 30's and had suffered with the health problems from early teenage yrs. I did further online research and decided to pursue this problem. I made an appt with an Endocrinologist, we discussed my health problems. She wasn't to convinced of the my story, but I refused to leave until she had run every test possible. When the test results came back, she was shocked and I was stunned with the diagnosis. The test results concluded that my Thyroid was neither under or over active, but in fact wasn't active at all. She was glad I was persistent in wanting these tests.
I was put on medication for under-active Thyroid and within months could see and feel the difference in my health, energy, etc. I'm still on that medication and will be for life.
I talked with a friend who described her infertility problems, and I told of my test results. She decided she had nothing to lose and everything to gain by getting her Thyroid checked out. In her case, she had an under-active Thyroid. After 6 months of medication, she was PG.
I'm NOT saying Thyroid problems ARE the cause of PG, but in some cases can be. I'm not trying to raise hopes or expectations. What I am saying is you may want to pursue the blood work for Thyroid function, before starting infertility clinic treatments. In our case, our infertility clinic, never, asked or tested me for Thyroid function which could have saved us loads of money, since our insurance didn't pay for any infertility treatments.
Good Luck