I had a term baby at 38years. I was treated with immune protocol – Intralipid, clexane, dexamethasone,aspirin and so on for repeated implantation failure( after 6 failed implantation)
Hla DQ and NK cells normal

At 40 I did ivf again with the same immune protocol with genetically tested embryo but had silent miscarriage at around 16-18 weeks with out any obvious reason.

They could not find the reason.

Could you help me with the reason?