Need advice

Brittani • Im 23 years old and im trying to have a baby i misscarried last year and was heartbroken i wanna start a family with my fiance
I'm 40 weeks today went to my appt was checked completely closed no contractions water didn't break nothing.... dnt think u can wait another week to see when he's ready alot of my friends and fan r telling me to take a teaspoon or 2 of castor oil that it should start my contractions and speed things up but I dnt wanna do it and something bad happens has anyone had success by taking it