How To Travel With A Heavy Period

I’m having a hard time figuring out how to travel with a heavy period. I’m worried that I won’t be able to find the right supplies or that I won’t be able to change my pad or tampon in time. I’m also worried about the possibility of leakage and how embarrassing that could be. I’m wondering if anyone has any advice on how to travel with a heavy period. What kind of supplies should I bring? How often should I change my pad or tampon? Are there any tips or tricks that could help me feel more secure and comfortable while traveling with a heavy period? Any advice would be greatly appreciated.