Thanks for all the good responses/advice, ladies. I wore it last night riding for the first time, and it worked like a champ! I even managed to change it at work yesterday before the ride by finding the lone single bathroom in our building so I wouldn't have to fear embarrassment. I'm getting better at it, and I feel so much better about the environmental impact of this vs. the huge number of tampons I was using every 26-27 days (my cycles are closer together now that I am in perimenopause, but still quite heavy).

Thanks ladies!
Emily