There are several traditional herbal remedies that midwives had.
"Oh auntie, auntie, I'm in terrible trouble! Terrible, terrible trouble."
"Sit down my dear, calm yourself. It can't be all that bad. Here, have some of my nice herbal tea."
Pennyroyale and slippery elm bark were two that I know of. My own mother, and her mother before her, drank pennyroyale tea, and they both had only one child each. Coincidence? I think not.