@Wanda186 Responsible hosts will usually contact a guest to let them know that they need to access the accommodation for a particular purpose. If you believe that your host entered without reaching out to you, it would be prudent to communicate with the host and find out why they entered without telling you. Perhaps the host was unable to reach you via phone, message or other means and entry was necessary to conduct immediately necessary maintenance.
However, if you feel that the host violated your privacy and the maintenance issue could have waited until he had your agreement to the entry, then you have the option to cancel the remainder of your stay by going into your account and cancelling.
I do hope that you will reach out to your host and have a conversation as to what occurred, why it occurred, and how you are both going to agree to go forward.