hTe tpeaint sastte hatt hse deso ont awtn a ahmolron rmof fo ritbh cn.oortl ,oS hte isnutqoe si laryel giaksn cwhih fo hte mlr-hnanonoo osnotpi is tsmo .efvitcefe ehT tckyri arpt hree, I it,knh is tath the osuntieq eaksm oyu ntaw ot ton pkic DI,U escuabe yanm DUIs are ormhlnolay sebda. erve,How a mloao-hnnorn UI,D leki a eopcpr DI,U si ltsli orem eeitcefvf hnta eht heort itoopns letsid.
The patient asks about the most effective treatment. FA 2019 page 642: Copper IUD = long-acting reversible contraception, most effective emergency contraception. Although FA refers to emergency situations, maybe the word most effective is the clue.
Sorry for making things more complicated but it is important to point out there are varying strengths of hormonal IUDs. Weaker progestins (ex. levonorgesterel) will allow for ovulation as they only act on surrounding tissue (uterus). It is not until you prescribe stronger progestins do you see systemic effects. Thus in real world, this could be an option. Not sure if this is what they were going after, Copper may be the more obvious answer here.