Anyone had two early miscarriages one with D&C and had a successful third pregnancy without doing anything different???

Brianna • Mommy to a girl born 9/12/2008.😇 10/26/18. MMC 5/20/19 🤰🏼 🌈 due in April 2020!

I had a chemical pregnancy back in October at 5 weeks 3 days and just had a D&C last week at 9 weeks for a missed miscarriage. Baby’s heart stopped beating sometime between 7-8 weeks. Has anyone had a successful third pregnancy without doing anything differently? Or did your OB do any testing and have you take something to sustain your pregnancy? Just looking for some positive stories.