Afterbirth pains

I’ll soon be delivering my 4th baby and I’m already a little worried about the after birth pains (I’ve experienced, and been told they get increasingly more intense with each delivery). With my third baby they were excruciatingly painful for about a week. I took pretty high doses of pain medicine just because it was the only way I could cope (this is coming from someone who had two babies on pitocin without pain medicine or epidural, so I have a high pain tolerance). I did use clary sage and lavender (just inhaling from the bottle) and that seemed to help a little bit, but I still needed the drugs, which I hate to use. Does anyone have suggestions on how to lessen them or at least cope without drugs?