Did genetic testing help you have a healthy pregnancy?

So a few weeks ago we found out our baby girls heart stopped beating. Seeings how this our second loss this year the dr wanted us to have her tested. He said that with her passing at 12 weeks three days that it had to of been a genetic issue. We’re still currently waiting on the results of the tests. It’s driving me nuts and I can’t stop overthinking it. Will this tests actually help us with having a healthy baby? There’s no none genetic issues on either side of our families. Although my aunt does have a blood issue that caused her to loss over 16 pregnancies and I do take after that side of my family more than my other side. Anyone have anything you can tell me on what to expect? I’m going nuts here.