Think of it this way...when you are pregnant your body is in a creative cycle...it is literally building a baby! When you are doing any kind of cleansing...your body is using destructive energy...it is breaking down those elements that are not needed and eliminating them. These two energies always work together...creative and destructive...or...replenishing and cleansing...and you always need to keep them in balance. When you are pregnant your focus should be on nurturing and replenishing...the actual birth process is a sort of cleansing/eliminating process for the mother...uses a lot of energy, nutrients, etc...and should be followed by another cycle of rebuilding for the mother...who is also providing nourishment for baby. Once you have replenished your own energy/nutrient reserves and your baby is no longer dependent solely on you for its nourishment...then you can again focus on a cleansing cycle. Initiating a cleansing cycle when you are naturally in a replensihing cycle...or when you are in a weakened or depleted state...will produce a decline in health rather than improvement.