How did women relieve labor pains before medicine was invented?

im doing a history day project and the big theme this year it innovation. My topic is how pain relievers for pregnancy has innovated. How did women relieve pain like in the 1500's to 1800's before epidurals and stuff were invented? Please just give me an answer!!!!!! If you don't know all of it, just put down wat u know! Please answer! thank you!!