TriCare and infertility

Can anyone share anything regarding IUI/IVF coverage under Tricare?

1. I currently have my own insurance through my employer (I'm not military, my husband is)

2. My husband is in the national guard and has tricare and is not the cause of infertility, it's me.

3. I've exhausted all my medical funds available to me having surgery (removing a 9cm cyst from my tube) and doing 2 failed IUI's.

4. If IUI continues to fail (we're already getting in deep with medical bills because of these) and they tell us the next step is IVF, we will not be able to afford it without taking out a loan. A payment plan within reason, yes. But the outrageous costs I hear of will not be an option for us.

If anyone has had any experience or knowledge please let me know.