trouble getting pregnant

for years my husband and i have been trying to get pregnant we have had multiple miscarriages and the doctors couldn't figure out what was causing our troubles with having a baby until a few months ago when they finally told me i have PCOS.. my husband is always by my side at doctor appointments and when we were given that news and then told we have about a 25percent chance of ever having a baby i could see his heart break when i looked at him as we got the news every day i feel like im a horrible wife because the one thing that we had always talked about may never happen for us and its my fault not his