Castor oil PLS REPLY SOMEONE THANKS

Ashanti • 23|•Loving My Rainbow Baby !! <07/2016👶🏽👶🏽
39 weeks and 5 days , do I take a tsp one hour and another the next hour ? Or take 2 tsp at one time ? And if anyone as tried it , how long after taken it did u feel a contraction or start Laboring?????????????