The P3 Study is also known as the Path to Prevent Preterm Birth Study. This study collects detailed data and biologic samples. It will help researchers to understand why some women have more than one preterm birth. For example, information from this study may help doctors know which medications or medical care will work best to help women deliver full term. We hope that this research will help improve outcomes for moms and babies in North Carolina and beyond! We are including women who have had a previous preterm birth. We are also asking some women who have delivered only full term babies to participate.

The purpose of this research study is to examine the effects of a writing task on women's mood, self-esteem, and other factors. The goal is to compare two groups of women: postpartum women and women who have never been pregnant.

The purpose of this research study is to find out whether a device, called a pessary, or vaginal progesterone lowers the risk of preterm birth in women who have a short cervix who are carrying twins.

The purpose of this study is to investigate the health of former women's soccer players.

The UNC Department of Psychology and Neuroscience is studying women's experiences during the postpartum period. More specifically, we would like to understand women's eating behaviors, mood, relationship, and parenting attitudes during this period. We are also interested in how these experiences compare to women who have never been pregnant.

The purpose of this study is to understand what moms think about all types of birth control, including immediate postpartum Long-Acting Reversible Contraception (LARC), and what they think about planning for pregnancy. This study will help further explain black-white differences in immediate postpartum LARC uptake.

The purpose of this study is to understand provider perceptions of immediate postpartum LARC. This research will help further explain black-white differences in immediate postpartum LARC uptake.

About 1 out of 5 women who are overweight or report snoring will test positive for sleep apnea during pregnancy. The most commonly prescribed treatment for sleep apnea is a small device called a CPAP. The CPAP just helps you to breathe in a normal pattern during sleep. Sleep apnea is common in pregnancy; it can affect the quality of your sleep and how you feel and function during the day. The goal of this study is to understand if using CPAP in pregnancy can help women have healthier pregnancies.

Are you pregnant? Would you like to have some extra ultrasounds of your baby? We're currently recruiting pregnant women who would like to participate in this ultrasound study. You will be able to have an extra ultrasound up to every two weeks (unless asked to return sooner) - you decide how often you would like to come.

Analyze biospecimens and conduct analyses on the association between endocrine disrupting chemicals and child neurodevelopment and growth.