Okay. Im 4 weeks post partum. My bleeding slowed down around the 4th day, and now its a little heavier. Not horrible not…

Okay. Im 4 weeks post partum. My bleeding slowed down around the 4th day, and now its a little heavier. Not horrible not filling a pad in an hour or anything. I also got the Depo shot before leaving the hospital. Is that why? Or what is happening?