Drospirenone-Primed Ovarian Stimulation Versus GnRH Antagonist Protocol in Poor Ovarian Responders Undergoing Freeze-All IVF/ICSI
Participants will: * Take either drospirenone (a daily pill) or the standard daily injection during their ovarian stimulation cycle, alongside their regular fertility hormone injections * Undergo egg retrieval, with all resulting embryos frozen (no fresh embryo transfer in this study) * Have a frozen embryo transferred in a later cycle * Complete two short questionnaires about their treatment experience - once before starting the injections/pills, and once after the stimulation phase ends * Be followed to determine if the embryo transfer results in a pregnancy
Spontaneous menstrual cycles (21-35 days) [+5]
Contraindication to ovarian stimulation [+4]