Liletta Postpartum anyone?

Okay ladies I had Liletta put in last week at 7 weeks postpartum. I had spotting and cramping for that day. The next day nothing. 2 days after insertion I started bleeding again. I believe it's my period as I hadn't had a postpartum period yet. I've had horrible cramping and my flow is heavier than it use to be. My period use to only last 3 days. This is day 5. How long did your period last after liletta insertion?