Im 15 and I'm going on holiday on the 23rd of March until the 3rd of April and my period is due on the day I come back but because I'm only young my period pattern hasn't settled down yet. One period wasn't until 4 week and 2 days , then the other one was 4 weeks until my period, but then this period was 3 week after. So my period could start any time while I'm on holiday. I haven't started using a tampon yet either so what should I do??