I'm on a laundry list for my next IVF.
400mg co q 10
B complex (specifically for the niacin ie: egg quality)
An antioxidant- pycnogenol or something similar
VITAMIN D! (a lot of new research coming out about low vit d levels and infertility/mc/IVF)
Melatonin 3mg at night
Be careful taking L-Carnitine if you're hypothyroid/hyperthyroid it can interfere with thryoid meds, etc.