I'm so happy for you that you pursued this and now will have answers and a game plan. I also have a MTHFR mutation as well as elevated NK cell activity. I will say that most clotting disorders usually come into play once you are past the 1st trimester. With so many chemicals and no implantation, I suspect that your Dr found immune issues too. The good news is that now that you know...it can be treated.
When I first found out that I had MTHFR, I was very upset that I was not given testing for clotting disorders until I went to a clinic that treats these and immune issues. Testing for clotting disorders is inexpensive and there really is no reason this testing should not be routine.