Re: Getting your periods
Your MIL is hilarious!!! 
BTW, I’m curious about 2 things. 1) What did you SIL tell you as to why periods must stay secret? 2) What’s your hubby’s reaction to all this? Gawd…I’m dying to know how your MIL kept it a “secret” from her husband!
As for my family, we also do the “don’t ask don’t tell” policy. Most of the men in my family are in the medical profession so they’re more than familiar with female bodies. They also have enough common sense not to ask! IF we do get asked…let’s say by a kid…we usually go with “not feeling well”.