The projects still in the process of funding do not generate interest. Your investment principal will be fixed once the project is totally funded and converted into the farmers’ local currency, determining then the investment's principal and the interest will begin to add up. For this reason there may be fluctuations in your investment from the moment you invest to the moment the project is fully funded.
If the project is not fully funded, it will go to "Not funded" status and you will be notified to withdraw to your wallet the funds sent to this project. It is not an automatic operation since it requires a security signature with the password of your wallet. EthicHub covers the expenses of the transaction.