Woke up this morning with brown discharge when I wipe. I'm 20 weeks and had no bleeding/spotting throughout until now. I had my scan a few days ago and everything fine. But I do have a low lying anterior placenta. I've not had sex or done any thing I can think of that would cause a bleed. Should I phone my midwife or maternity unit? I just don't want to make a fuss on bank holiday.