Sorry if this is a personal question, but for those of you who don't mind sharing, do any of you get light brown spotting before AF, and if so, how long does it last? Every AF I have had since coming off the pill has started this way and it's really, really annoying. It doesn't feel normal, and it worries me. I had an early miscarriage last month and I'm worried it's cos of a lack of progesterone - what do you think?