Hi, Just thought I offer my .02 on Lam. With my first born, my menses did not return until my daughter was 20 months old. My son was 18 months when it returned, and my youngest was 16 months. With my first two, I became pregnant after experiencing one period. I believe I am very fertile! Needless to say, with the return of my menses this time, we are now taking other precautions. Aloha, Gloria Thai LLLLeader