You will have no probelms here bro. Just take your weekly dose of tren e and test e before you leave. It may be ideal to keep your hormones more stable by splitting up your injections through the week, but it isnt necessary. If you really wanted to, you could take all your gear once a wk and I bet it wouldn't have any effect on your gains, what so ever. The only issue you may run into, if you were to always run your gear that way, would be the possibility of increased side effects from the spikes and drops in hormones. When I space gear out too far, I notice that I am more likely to get acne...but that's about it. 

Take your shot or shots, either the night before or the morning of leaving for your trip, leave you gear at home and have a great time! I would bring enough AI, assuming you are using something like adex, through the cycle. Other than that, When you get back, wait for the wk to finish up and start back up on your regular injection schedule.