OK, resurrecting the thread for an update....
Instead Cups - Best. Product. Ever.
Wifey tried one once outside of the period, basically just to see if I'd notice the thing there - which I of course did not. So I told her point-blank to just not tell me for the 1st actual period she gets & to try them.
Bottom line, I had no idea. No mess, no fuss, and now no sexual downtime
Sammy