Hi I haven't posted in awhile but I decided to come back and try this again I had a question I had…

Hi I haven't posted in awhile but I decided to come back and try this again I had a question I had my 3rd baby August 18th and I was just wondering has anybody else had their cycle completely change after birth? Tmi but My cycle used to last about 6-7 days heavy most days and spotting the last couple days no cramping and if so very mild now after my 3rd it's only 3-4 days 2 days very very heavy and so freaking painful and then the last day or 2 is spotting The pain is in my pelvic area and hurts so bad last month I literally stayed in bed for 2 days I'm just wondering if it's normal for the cycle to change like that? has it happened to anybody else?