I have quite a bit of info on this Vic but I am on my phone at the moment.

Have a look in the LTTTC and Assisted conception Over 12 months thread. I have some posts in there about it.

In the meantime, re: coq10, I take 300mg a day of high strength (along with a bazillion other things).

It's hard though because the time you are 40, over 90 percent of your (relatively few) remaining eggs are chromosomal abnormal. Us oldies really are playing a lottery game