Hi I have just wrote a new post on tyring to conceive long term, I also have been diagnosed with compound heterozygous MTHFR, I have just had my 6th chemcial pregnancy, this one using clexane injections.
I done some research and took this to our Dr but the treatment has unfortunately not worked for us but has for many others. I can't add the link as It says I can't add links until I have made 10 post however the page is called fertile thoughts . com. The information is found under MTHFR tutorial and is a treatment plan from Dr beer which you can also Google.
Best of luck