Pregnancy after miscarriage

Hi there. I'm pregnant again after two losses (one chemical pregnancy at 5.5 weeks, and a more recent miscarriage at 8 weeks). I'm currently 6w5d along, and had a good ultrasound last week, but I'm so nervous as I'm getting closer to the 8 week mark. I know there isn't much I can do to prevent another loss, and my doctor is optimistic, but I'm still terrified. Any others have advice about how deal with the anxiety?