I am so sorry for your losses.
I was just diagnosed with the homo version of this mutation. I just started on Folbic tablets (I think that's the same as Folgard) and a baby aspirin daily. My OB said of all the abnormalities she tested me for this is the "best" one to have. I had one completely normal pregnancy two years ago without even knowing this diagnosis followed by ttwo miscarriages this summer/fall. My OB said it is a VERY common mutation that many people have and will just never know they have. She is confident with this course of treatment I can have a successful pregnancy.
The major concern as she explained it to me is that when you can't process folic acid appropriately, you may have increased levels of homocysteine which can lead to clotting. She had me come in for a fasting homocysteine test and she said once I get pregnant again I will be monitored to ensure that my homocytesteine levels stay in the normal range. The biggest concern is keeping your homocysteine levels in check.
Best of luck to you!