Welcome to MyPregnancyWeek

Every piece of content on My Pregnancy Week is carefully researched and written with the goal of being both medically accurate and genuinely helpful for expecting parents. We reference guidelines from the American College of Obstetricians and Gynecologists (ACOG), the World Health Organization (WHO), and peer-reviewed obstetric research to ensure that the information you find here reflects current medical consensus. When recommendations vary between organizations, we note those differences so you can discuss options with your healthcare provider.

Our week-by-week pregnancy guides follow your baby's development from conception through birth, with each week covering fetal growth milestones, common maternal symptoms, nutrition recommendations, and what to expect at prenatal appointments. We know that pregnancy is not just a medical event; it is a deeply personal experience. That is why our guides also address emotional well-being, relationship changes, and the practical aspects of preparing for a new family member. We aim to be the resource you turn to when you have a question at midnight and want a trustworthy answer.

We regularly review and update our content to reflect new research and evolving clinical guidelines. Prenatal care recommendations change as new studies are published, and we take our responsibility to stay current seriously. Our symptom guides, nutrition articles, and exercise recommendations are reviewed periodically to ensure they align with the latest evidence. If you notice something that seems outdated or have a question our guides do not address, we welcome your feedback and use it to improve our content.

Pregnancy is divided into three trimesters, each lasting approximately 13 weeks and bringing distinct developmental milestones for your baby and physical changes for you. Understanding what happens in each trimester helps you know what to expect, when to seek medical attention, and how to prepare for the stages ahead. Our week-by-week guides provide detailed information for every week, but this overview gives you a roadmap for the full 40-week journey.

The first trimester (weeks 1 through 13) is a period of rapid cellular development. During these early weeks, a single fertilized egg divides into millions of specialized cells that form the foundation of every organ system in your baby's body. By week 8, all major organs have begun to form, and by week 12, your baby has fingers, toes, and recognizable facial features. For mothers, the first trimester often brings the most challenging symptoms: morning sickness, extreme fatigue, breast tenderness, and heightened sensitivity to smells. These symptoms are caused by the dramatic rise in pregnancy hormones, particularly hCG and progesterone, and typically begin to ease as you approach the second trimester. This is also the most critical period for prenatal vitamins, as folic acid intake during the first trimester is essential for preventing neural tube defects.

The second trimester (weeks 14 through 27) is often called the "golden period" of pregnancy. Morning sickness usually subsides, energy levels improve, and many women feel their best during these weeks. Your baby is growing rapidly and developing the ability to hear, see light, and respond to stimulation. Most parents feel their baby's first movements (called quickening) between weeks 18 and 22, which is one of the most exciting milestones of pregnancy. The anatomy scan, typically performed around week 20, provides a detailed look at your baby's development and is when many parents learn their baby's sex. This trimester is also when your baby bump becomes clearly visible and you may need to transition to maternity clothing.

The third trimester (weeks 28 through 40) is focused on growth, maturation, and preparation for birth. Your baby gains most of its weight during these final weeks, developing the fat stores needed for temperature regulation after birth. Lung development continues through week 36, which is why babies born before this point often need respiratory support. For mothers, the third trimester brings its own set of challenges: back pain, difficulty sleeping, frequent urination, Braxton Hicks contractions, and general discomfort as your baby takes up more space. This is the time to finalize your birth plan, pack your hospital bag, prepare the nursery, and attend any remaining prenatal classes. Regular prenatal visits increase in frequency during the third trimester, typically moving from monthly to biweekly and then weekly as your due date approaches.

My Pregnancy Week was built with one purpose: to give expecting parents free, reliable, and comprehensive pregnancy information in one place. We know how overwhelming it can be to search for answers across dozens of websites, forums, and apps, never quite sure which sources to trust. Our platform consolidates everything you need, from early pregnancy symptoms and first trimester precautions to third trimester preparation and postpartum recovery, into a single, well-organized resource that you can return to week after week throughout your pregnancy.

Every feature on our site is free, with no subscriptions, premium tiers, or account requirements. Our calculators, checklists, symptom tracker, and weekly guides are all accessible immediately. We believe that essential pregnancy health information should never be gated behind a paywall, especially when the decisions you make during pregnancy have such lasting significance for your family's health and well-being.