Post part. bleeding

FarmWife 🌾 • 2015 👧🏼 2017 👼🏼👼🏼 2018 👧🏼 🌈 2020 👶🏼

My bleeding stopped during the day to a yellowish discharge. The last 2-3 nights Ive started bleeding again.. just at night! It’s a decent sized gush. By morning I am back to yellow discharge again!? Why?