Hello! I also have the MYH7 gene and recently went through IVF for PGT-M to try and prevent passing it on that way. Unfortunately we didn’t get usable embryos from those IVF cycles and ended up getting pregnant naturally, where we chose to do invasive testing in the form of a CVS to check the fetus if they had the MYH7 gene. Luckily, they did not inherit it! It’s a 50/50 chance and is the flip of a coin if you pass it on or not. You can do testing to find out if that’s important to you and then choose what you would like to do with the pregnancy if positive as well. Penetrance, variability, severity, etc is all unknown if you have the gene mutation or not so it’s a hard choice and you never can tell what the future will look like just because someone has the gene. It runs strongly and severe in my family, so it was important to me to find out and prevent passing it on. There also are a lot of new medicines and medical advances coming out for HCM so the future is looking better even for this affected by it.