Has anyone been told they their uterus isn't receptive?

Hi. New on here. My husband and I have been doing ivf with icsi due to what we originally thought was just severe male factor infertility (low count and motility) he also has a varicocele vein probably causing the low counts. We had 3 good quality embryos, all of which failed to implant. My doctor now says I have diminished ovarian reserve and that my uterus isnt receptive. Only other test to test that is ab ERA but he says that isn't definitive and if it comes back normal than there is nothing else to do. Has anyone heard of this or have been told this? Any success stories out there?