It has also become a big driver in the number of older single mothers in the U.S. at a time when the country's overall birth ...

Pregnancy is often talked about as though it’s a light switch. You’re a regular person walking around and then a switch flips — presto, you’re pregnant. The reality is more nuanced. "Sex ed really ...

An experimental treatment significantly improves the quality of human eggs and increases the proportion that can be used for ...

The news of eight babies conceived and born in the United Kingdom, each with genetic material from three parents, has reignited bioethics debates on in vitro fertilization, gene editing, and the role ...

For some, trying to get pregnant can take months of precise timing and planning before eventually seeking help through assisted reproductive technology like in vitro fertilization (IVF). IVF can be ...

Freezing sperm is one of the most common preventive measures taken by people who are about to go through chemotherapy or other processes that may reduce their fertility. Although it’s a relatively ...