2 miscarriages back to back- advice?

Ka

Hi gals-

I’m 40, have 3 teenagers and ttc #4. I have gotten pregnant 2 months in a row. I miscarried dec 31, and again last Saturday. March 14- The first happened at 4 weeks (very early) this time I was 6.5 weeks.

I’m CD 6 now and will try again this month. Any tips or supplements I could try? I’m researching about early miscarriage.