We can respond to Michela that this is, in fact, true. The progestin hormone contained in the subdermal implant (etonogestrel), despite being a different molecule than that found in the progestin-only pill, acts in the same manner for pregnancy prevention. The main mechanism of action is the effective inhibition of ovulation, which is further amplified by the thickening of the cervical mucus, which creates a hostile barrier for the ascension of sperm. The implant, when inserted correctly (only the gynecologist can do this), has a high rate of efficacy that is greater than 99% (99.95% in fact, and it is considered the most effective hormonal contraception) for all three of the years in which it is recommended to keep it in. After this, it can be replaced with a new implant.
