N2L- I am not a spotter either but when I'm on progesterone I seem to spot on and off for a few days before AF. I assume it's because the progesterone is holding off AF and the spotting is breakthrough. With me it tends to lead to another roller coaster of devastation that it hasn't worked followed by mad googling to find all the info on people who have a bleed every month even when pregnant. Obviously, it has always been the former for me...

Hi Vic and Miss B!