Boyfriends birthday

Hey guys I really need ur help. It's my boyfriends birthday next Friday and according to the app I'm getting my period on that day. I can't get my period as we are planning a nice romantic weekend away and I would really liked to give him birthday sex. What can I do to stop my period? Atleast just for that wknd. I recently started using ginette35 bc prescribed by my dr. But I still get my period through that. Any help? I'm really desperate😰