Natural FET or Medicated FET - One Embryo Left!

Need opinions! We have one embryo left. We just did a medicated FET for our first time, I ended up having a chemical. The office mentioned the possibility of a Natural FET next. We don’t have fertility issues and are using IVF for genetic testing. My body has and can support pregnancy naturally as we already have 2 children.

Questions:

If you did a natural FET, was it successful? Did you try a medicated FET first? How many times? What do you think is the best route since we have only one embryo left?