Do you know what were your E2 levels in those natural, Femara, and especially this IVF cycle?
Maybe you could call the nurse and ask? If you can, get your P4, LH, and FSH numbers as well.
Did your RE do the laparoscopy? Do you know why your left ovary has been inaccessible? Is there someone else you can consult on the endo?
I would definitely ASK lots of questions! I am sorry that you're going through this.