Very slight brown discharge

Carrie • 💕46 1/2 yr old Mom of 6 Sunshines🌞, 1 Angel👼🏼 & 1 Rainbow 🌈
I woke up this morning with yellowish/brownish discharge on my liner and throughout the day I have an extremely light brown, like can barely tell because it's similar to the milky white but with brown tinge... any ideas? No cramps or anything and I'm 17 weeks.