Hi mama! Brown discharge at 38 weeks can mean a few things, pero honestly, you need to call your OB or go to your clinic/hospital today para ma-check properly, better safe than sorry when you're this far along, di ba? A few of my mum friends had similar concerns near their due date and ang doctors nila agad na-reassure sila after checking, so don't panic, pero please don't wait pa. How are you feeling otherwise, any cramping or contractions?