Repeating Local Notification in android

I am trying to make a notification, Whever app is installed, it automatically set alarm/notification every 1st of month and upon clicking that notification it opens a specific activity of the application

Here is my code for alarm manager

 // get a Calendar object with current time
    Calendar cal = Calendar.getInstance();
    // add 5 minutes to the calendar object
    cal.add(Calendar.MINUTE, 5);
    Intent intent = new Intent(this, AlarmReceiver.class);
    intent.putExtra(MESSAGE);

    PendingIntent sender = PendingIntent.getBroadcast(this, 10, intent, PendingIntent.FLAG_UPDATE_CURRENT);

    // Get the AlarmManager service
    AlarmManager am = (AlarmManager) getSystemService(ALARM_SERVICE);
    am.set(AlarmManager.RTC_WAKEUP, cal.getTimeInMillis(), sender);

I have made an alarm class

 @Override
 public void onReceive(Context context, Intent intent) 
 {
   try {
         Intent newIntent = new Intent(context, Appointment.class);
         context.startActivity(newIntent);
        } 
   catch (Exception e) 
    {
       Toast.makeText(context, "There was an error somewhere, but we still received an alarm", Toast.LENGTH_SHORT).show();
         e.printStackTrace();
      }
}

My problem is, i want to set it as a repeating notification, each month on 1st. The alarm code, I have it in my mainActivity. How can i set it that it will repeat each month

`Schedule a repeating alarm can be achieved by setRepeating() of AlarmManager()`

public void setRepeating (int type, long triggerAtMillis, long intervalMillis, PendingIntent operation)

Hope you can achieve your goal by checking which month is and modify the INTERVAL_DAY *28 Or INTERVAL_DAY*30 OR INTERVAL_DAY*31 by setting flags and all that.

 am.setRepeating(AlarmManager.RTC_WAKEUP, cal.getTimeInMillis(),AlarmManager.INTERVAL_DAY*30, sender);