Is 6-Chloro-17-alpha-hydroxy-delta(sup 6)-progesterone acetate Safe in Breastfeeding

I am a breastfeeding mother and i want to know if it is safe to use 6-Chloro-17-alpha-hydroxy-delta(sup 6)-progesterone acetate? Is 6-Chloro-17-alpha-hydroxy-delta(sup 6)-progesterone acetate safe for nursing mother and child? Does 6-Chloro-17-alpha-hydroxy-delta(sup 6)-progesterone acetate extracts into breast milk? Does 6-Chloro-17-alpha-hydroxy-delta(sup 6)-progesterone acetate has any long term or short term side effects on infants? Can 6-Chloro-17-alpha-hydroxy-delta(sup 6)-progesterone acetate influence milk supply or can 6-Chloro-17-alpha-hydroxy-delta(sup 6)-progesterone acetate decrease milk supply in lactating mothers?

Synthetic progestin-related drug similar to the progesterone used for treatment of uterine bleeding, dysmenorrhea, infertility and occasionally for prostate problems.It has been used as a birth control medication, as single component or in combination with estrogen (e.g. mestranol + chlormadinone). No changes in prolactin were observed on plasma levels or milk production in women treated with chlormadinone. During lactation progestin-only drugs are preferred or in combination with estrogen for birth control, but whatever, the ones with the lower doses of estrogen should be used.For the first 6 weeks postpartum, non-hormonal methods are of choise.