What are some natural ways to help soften the cervix besides sex?

My husband is in the army and I'm 40 weeks pregnant. The baby is completely engaged or at a 0 station and has been there for a week but i'm only 1cm dilated and about 75% effaced. I consistantly have strong contractions at the same time every night, and now her position is pinching a nerve that will drop me to the floor. My body is trying to prepare for labor, but my cervix just won't soften. Anyone have any ideas? I hear sex is the best, but I don't have that option right now :(