Hello. We're so glad you are using our My Cycles app and hope it is helpful to you. The green is your fertile time within the app, you are correct. In our menstrual cycle tracker, the green indicates when your flow most likely will be. But I believe you are talking about our app. As far as chances of conceiving, day 10 is usually the first day in which conception is most likely to take place so the last two days you listed as days you tried for baby would be your best bet for conception.
Hope this helps and let us know if you have any more questions.