A 6-week postpartum client who is exclusively breastfeeding asks about contraceptive options. She is concerned about a potential negative impact on her milk supply. Which of the following methods is generally considered to have no hormonal impact on lactation?
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A
Combination oral contraceptive pill
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B
Progestin-only pill (mini-pill)
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C
Copper IUD
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D
Contraceptive vaginal ring