Eggs are stored in the ovaries and they are only produced with the appropriate hormonal stimulation. So, the medical doctor collects a blood sample and tests it for three critical hormones: follicle-stimulating hormone (FSH), which triggers the growth of ovarian follicles before ovulation; estradiol, and that is manufactured mainly by https://bentdirectory.com/listings13025232/not-known-factual-statements-about-egg-freezing