Consider this week-by-week pregnancy calendar your ultimate guide to the next nine months. When you’re pregnant, your baby is changing every day, and your body is keeping pace. This pregnancy tracker will help you better understand the weeks, months, and trimesters of your pregnancy. Looking for a week-by-week guide to pregnancy? You're in luck! We've got loads of expert-approved info about each week and trimester, including what's up with your growing baby and what changes to expect for yourself. Anyone who has a functioning female reproductive system, regardless of intersex or transgender identity, is capable of becoming pregnant. Some people are not capable of becoming pregnant, even with advanced assisted reproductive technology. Pregnancy is the period in which a fetus develops inside a woman’s womb. It usually lasts about 40 weeks, or just over 9 months. If you think you might be pregnant, it is natural to feel a mix of anticipation, hope, uncertainty, or even anxiety. Early pregnancy can bring subtle changes — and sometimes symptoms that are easy to misinterpret. An at-home pregnancy test is the most common way to confirm pregnancy, but you can also confirm you’re pregnant with a blood test. Some of the first signs of pregnancy include a missed period, nausea and fatigue. Learn what to expect during all pregnancy stages - from early pregnancy symptoms to labor & delivery, nutrition, pregnancy trimester information, and more. Subscribe to The Doctors: The last few weeks of pregnancy can be pretty uncomfortable, but what if you had to stay pregnancy longer than 40 weeks? Congratulations, and welcome to your pregnancy! From what to expect each week to how to prepare for labor and beyond, here's the info you need. Here's what you need to know about your baby's development and more throughout your pregnancy. Learn about the science and symptoms of a woman’s 9-month pregnancy. Explore the science behind the body’s greatest mysteries -- in two minutes flat. From hormone increases and morning sickness.