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From my calculation, your stimulation was for 9 days. That's fine. However, the elevated LH on on the 4th day of stimulation is worrisome. Premature exposure to LH can compromise the egg maturation process leading to "post mature" eggs. The Antagon would bring the LH back in line, but once elevated, it could cause trouble.
We expect to obtain eggs from follicles over 16mm at the time of hCG. Follicles smaller than 16mm will either not yield eggs (as in your case) or yield immature eggs. At the end of the stimulation, you had 4 mature follicles. So, its 3/4 eggs retrieved, not 3/9.
As to the low fertilization results - if there's something wrong with the egg (i.e. genetically abnormal) it will not fertilize or it will not activate when a sperm gets inside. Effectivly, the egg is a dud. This is nature's way of preventing the development of abnormal embryos. This becomes more common with advanced maternal age (i.e. >35). You are 40 and the simple truth (although you probably don't want to here it) is that you're going to have a hard time getting pregnant because your eggs have passed their prime. Sorry to be blunt, but I call's them as I see them.
I hope you have better luck if you chose to try another cycle, but you should try to keep your expectations in line with the biological reality. Best of luck.
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