Pregnancy

Different versions of a gene called ACE2 affect how well the placenta grows during pregnancy, a laboratory study finds.

A teen girl with abdominal pain learned she was pregnant and had conceived under extremely unusual circumstances.

Researchers estimate that recent abortion bans have driven a rise in infant death rates in affected states, especially among Black children and kids with congenital anomalies.

New research suggests that people who are exposed to higher levels of air pollution and extreme temperatures during pregnancy have longer pregnancies than people who are not exposed to these conditions.

A woman's contraceptive implant ended up in her lung; doctors believe the device migrated because it wasn't inserted in her upper arm properly.

Scientists are studying the vaginal microbiome in populations all around the world to see how it might differ in different people and in health and disease.

The new study reinforces warnings from doctors about abortion laws with limited or no exceptions.

By modifying 20 regions of the genome, scientists successfully bred mice with two male parents and raised them to maturity.

Fathers exposed to high stress in childhood had different epigenetic markers that may affect their offspring, though more research is needed.

The newborn had a birth defect that left a gap in his lower spine, through which tissue pushed out and formed a giant, red, balloon-like structure.