Marriage

salam waalikum, im a new muslim convert.my husband and i have tried the IVF twice and we lost both times..now the doctors have said the only options we have is a egg donor and im sure you will say its wrong but my concern is my marriage also…i know he can marry another wife but he cant afford it so i guess he can divorce me on these reasons? is there anything that we can do to save our marriage? so we can have a child to raise together? please help me despertly trying to save my marriage to the one i love so much salam