Quote: Originally Posted by ErinB In my amateur OB/GYN opinion, I say keep changing every 3 weeks until you go on the trip, then by the time you get back you can have a period and get back on it. The problem with doing this is that I'll have to bring one with me and I'm trying to avoid that. It will be without refridgeration for quite awhile which worries me, and let's be honest, I could totally forget to change it!