checks whether reminder date is already passed

lib/notifications.js

@@ -64,14 +64,17 @@ function setupPeriodReminder() {
       .hours(6)
       .minutes(0)
       .seconds(0)
+
+    if (reminderDate.isAfter()) {
     // period is likely to start in 3 to 3 + (length of prediction - 1) days
-    const daysToEndOfPrediction = bleedingPrediction[0].length + 2
+      const daysToEndOfPrediction = bleedingPrediction[0].length + 2
 
-    Notification.localNotificationSchedule({
-      id: '2',
-      message: labels.periodReminder.notification(daysToEndOfPrediction),
-      date: reminderDate.toDate(),
-      vibrate: false
-    })
+      Notification.localNotificationSchedule({
+        id: '2',
+        message: labels.periodReminder.notification(daysToEndOfPrediction),
+        date: reminderDate.toDate(),
+        vibrate: false
+      })
+    }
   }
 }
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