Long car ride in 3rd trimester

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I will be driving to visit home at 33 weeks, the drive is about an 8 hour drive, so I have to ask any ladies tips on what to do for having to pee so often, I am talking like should I get a bed pan? I'll use old people diapers I don't care! I'm little so I have to pee alot and it's not logical for us to stop every time and I don't want to stop drinking water as much either. I plan on drinking a good amount of coconut water to help with hydration since it can hydrate better than water and has electrolytes, but has anyone done this and would me wearing diapers work? We'd obviously stop a few times to stretch but I do not want to stop a million times or this 8 hour trip becomes 12 hours and I have a small amount of time that I can be home to see my family.. so if anyone had tried anything please feel no shame let me Know! Lol