Dad here: how to help my 9y/o daughters when she eventually gets her period?

So, I have this totally kick ass girl as a daughter. One day, if health class wasn’t lying, she’s gonna get a period. Now, I’m not a single dad or anything. Her mom is my best friend and partner, and will of course be a great help. But I want to be prepared on my own, and I know that every uterus is different and that she may have a totally different experience than her mom.

So what can I do?

Right now we’re on the normalize train, my wife’s tampons and stuff are out in the bathroom and she’s explained what they are for.

Is there anything your parents did do that made that whole experience less bad? (Should I vow never to use the word “menarche” for example? ;) )