First period since baby.. started, stopped, started again

Gi

My first period after giving birth (and stopping BFing) lasted 9 days. Then it stopped for 3 almost 4 days. Suddenly I am bleeding again. I have no idea wtf is going on. Has this happened to you, too? I actually had felt a period-like cramp a few hours ago but was like nah I just finished my period and it's probably just in my head (but apparently wasn't).