For humans, the gestation period can last forty weeks. There are cramps, morning sickness, strange food cravings, increasing discomfort, and a multitude of other effects. And the nine months of ...

University of Cambridge scientists say they have identified a key pathway that controls the expansion of the placental vascular tree in late gestation, demonstrating that fetus-derived signals are ...

First-trimester bleeding is not linked to a risk for pregnancy loss, but bleeding with ultrasound dating that is more than 5 days behind the last menstrual period date is tied to a higher risk.