Final answer:
The first step of IVF is ovarian hyperstimulation with gonadotropins, which involves administering hormones to support the development of multiple follicles. The ova are then retrieved from the ovary.
Step-by-step explanation:
The first step of in vitro fertilization (IVF) is ovarian hyperstimulation with gonadotropins. This involves administering follicle-stimulating hormone (FSH) analogs to support the development of multiple follicles, followed by a luteinizing hormone (LH) analog that triggers ovulation. The ova are then retrieved from the ovary using ultrasound-guided oocyte retrieval.