For the last few months, I've sometimes been getting a pink discharge a day or 2 before my period is due to start. The pink discharge only lasts an hour or so and I normally only notice it on a tissue when wiping myself after going to the toilet (sorry if this seems yukky but it's the only way I can describe it!) Then it stops and a couple of days later I get my actual period, which usually lasts 6 days. I don't get the pink discharge every month though.
Is this normal or is it anything to be concerned about?