I am in my early 30's and partner is in mid 30's I was able to get pregnant 8 years ago after 8 years of trying since then I have had 4 blighted ovums and not been able to sucessfully get pregnant again. My partner has been diabetic for 35 years, do you have any suggestions so that we can become sucessfully pregnant again, and do you think his diabetes is the cause of blighted ovums, and miscarriages?