Sorry, I know it's early on a Monday but where else could I discuss brown cm! I think on Sat I would have been approx 13dpo and when I went to loo I had some brown tinged mucus in knickers. Nothing to wipe just some marks if you know what I mean. Last week on Tuesday and weds I was so tired I could barely stay awake and I have felt dizzy but then I've got a poorly toddler so put it down to that. Anyone ever have this? Is it a sign? Too late for IB?