What preeclampsia means Preeclampsia is a multisystem hypertensive disorder of pregnancy. In clinical terms, it is usually suspected when a pregnant person develops new high blood pressure after 20 weeks of gestation. It may be accompanied by proteinuria, meaning excess…

What placenta accreta spectrum means In a typical pregnancy, the placenta attaches to the uterine lining and separates after the baby is born. In placenta accreta spectrum disorders, the interface between placenta and uterus is abnormal, so the placenta is…

Why the placenta matters The placenta is the organ that supports fetal growth by transferring oxygen and nutrients, removing waste products, and producing hormones that help maintain pregnancy. It is attached to the uterine wall and connected to the fetus…

Why timing matters when bleeding occurs Bleeding in pregnancy is usually approached by gestational age because the differential diagnosis changes as pregnancy progresses. In very early pregnancy, bleeding may be related to implantation, hormonal transition, cervical sensitivity, early pregnancy loss,…

What is an ectopic pregnancy? In a typical pregnancy, fertilization occurs in the fallopian tube and the embryo travels into the uterus, where it implants in the endometrium. In an ectopic pregnancy, implantation occurs outside the uterine cavity. About most…

Understanding the difference between threatened and recurrent miscarriage Threatened miscarriage is a clinical term used when a pregnant person has vaginal bleeding, pelvic cramping, or lower abdominal pain in early pregnancy, but the pregnancy has not necessarily been lost. Typically,…

Understanding miscarriage in early pregnancy A miscarriage is the spontaneous loss of a pregnancy. Most miscarriages occur before 12 weeks of gestation, and many happen very early, sometimes before a person realizes they are pregnant. The medical term may be…

Why the threshold for calling is different in pregnancy Pregnancy changes cardiovascular, respiratory, gastrointestinal, urinary, endocrine, and immune physiology. Blood volume increases, heart rate may rise, ligaments soften, the uterus expands, and reflux, constipation, and mild shortness of breath with…

Why PMS and early pregnancy feel so similar PMS and early pregnancy symptoms overlap because both are strongly influenced by post-ovulation hormonal changes. After ovulation, progesterone rises. Progesterone can contribute to breast tenderness, abdominal bloating, constipation, fatigue, sleepiness, mood changes,…

Why warning signs matter Most pregnancies include symptoms that are uncomfortable but not dangerous. Hormonal shifts, increased blood volume, uterine growth, metabolic changes, and musculoskeletal strain can all produce unfamiliar sensations. However, pregnancy also changes the way the cardiovascular, renal,…