Contraception

"The leaf" Prunus Meretrix
Historically the leaf was the only means of magical contraception. It is a leaf from the Matia tree that soaks into your body and prevents pregnancy. It was known to fail in certain circumstances.

"Imperial haze"
Discovered by Rosa, this new contraception is unable to fail, unless the user is dishonest. It is tied into your will. If you do not wish to get pregnant you wont. It also helps by increasing sensitivity.