Light brown discharge

Hi all, what kind of discharge is normal? Past couple of days I felt discharge coming out (which I usually don’t since I got pregnant until 12 weeks, I’m 12w 6d today 12 Apr) but it didn’t leave any stain. However I went to the toilet to pee and saw a very light brown discharge almost yellowish brown on my pantyliner. Should I be worried? Or is it normal? Just went for my Down syndrome scan last Thurs 9 Apr and baby is actively moving and healthy. Low risk of DS as well. There’s no pain whatsoever just the occassional bloating at times.