Women wishing to expand their family might consider making Aliyah. Researchers at Tel Aviv University have found for the first time that exposure to the sun in women aged 30-40 can increase fertility. Their ovaries secrete more Anti-Müllerian hormone (AMH) due to higher UV levels.
https://safrabio.cs.tau.ac.il/carmit_levy_exposure_to_sun_may_increase_fertility_among_women
https://www.sciencedirect.com/science/article/abs/pii/S0039128X23001356