frustrated

Nicole
I have had 3 miscarriages with my boyfriend within 7 months. I have a healthy 6 year old daughter that I had with my ex. I have went through every test there is I swear and everything comes back great. The doctors and I believe it is him due to my healthy first pregnancy and him having no children. He feels terrible about it. I seem to have no trouble getting pregnant just sustaining it. We want to add to our family, but it's taking a toll. Does anyone have any advice or similar story with their partner?