Snap and then apologise.

If I know I'm PMSing even before I start I gave DS a cuddle, told him "Mammy can't be doing with this today, let's have a REALLY FUN day and we do that by not arguing - we'll do XYZ this morning then you pick something." Then I do snap over something, but DS was pretty good with it if I just apologised and made his day fairly fun. Then again, he is used to a grumpy mother.

God bless the no-period Pill!