Don't worry, I know what aunt flo means. I would reschedule for the following week or something.

My ATF says she's available 3 weeks per months.  We're all adults, I hope.

Just say period.  If someone doesn't know that that means, you probably don't want to see them anyhow.

I had an appointment where she didn't and I was disappointed not to be able to enjoy DATY.

.... They need to grow up abit.

be up front...i just let them know that i am or if scheduled out that i may be on or starting (i have an app to help keep track) my monthly cycle...honesty is always best...most have declined and/or rescheduled, but some do not mind because they only want to see me for my oral skills

Some people maybe interested, and other absolutely not.  Honesty, is always best.  I would not use the term, "Aunt Flow."
Common courtesy is to say I will be on my period, during that time. I refer to it as a bloody luxury, and it is a taboo service that I cater to.

I agree if they question tell them to Google it.  The question might be better framed as limited services available or reschedule.  

just say period, period?

Not to sound crass, but would you still schedule a visit as a client if you had yours? I wouldn't think so but I'm a guy so what do I know. Lol.

A few  just let me know that the 2 hole and 3 hole are still open for business.  
I do have a few wonderful milfs who for varying reasons don't have that challenge anymore. And they are so freaking happy.  
Have fun!

That the manner of women is upon you and after your Mikveh immersion you will be available lol!!! Yep I've been hanging tough with my non Gentile friends.  

I have had my period show up just prior to a session only once. I went ahead and showed up at her incall and told her as soon as I walked in the door that I got my period literally on the drive over, and I told her that maybe we could do things that didn't involve her face in my vagina....or we could just cancel. It was her call. She grinned and said not to worry about it and proceeded to give me an amazing session. Talk about making lemonade out of lemons

I had a provider tell me "it could come today" just so I'm not alarmed at a little blood on the condom.  This was someone I had a regular thing with, so I planned to skip that week or risk a limited menu.

I have a client that see's me 3x a month doesn't care, but I do.  I take that week .  I am pretty regular with the full moon cycle.  I track with a health app on my phone.  I will book close sometimes, or have been late starting.  I always let someone know up front when close or running late.  If they are going to freak out, rescheduling.  Orgasms are known to trigger period to start again.

Several years ago, I was scheduled to see a provider on a Sunday, but she emailed me on Friday to ask that we postpone the appointment, because "that which cannot be avoided has arrived."

I dated a woman who referred to her period as "my Friend", as in "my Friend came today!"  The first time she said it, I asked her what she meant. She meant her period; she called it her "Friend" because when her Friend came, she knew she wasn't pregnant.  

That’s my go to.

For what it's worth there are several safe types of birth control that also prevent periods.  My ex never had a period the entire time we were together.    

To hear them tell it, their ex wives were on the rag the entire time they were married. lol

I use to do that.   My GYN won't let me take birth control pills, so I had a tubal several years ago.  As soon as possible, I am going back for ablation that stops periods completely without the recovery time of a hysterectomy.