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You can hardly wait until your due date — but when is it again? Find out exactly how many weeks and months into pregnancy you are. Back to Top. In This Article. Continue Reading Below. More About Pregnancy Trimesters. Your Guide to the First Trimester of Pregnancy. Your Guide to the Second Trimester of Pregnancy. Your Guide to the Third Trimester of Pregnancy.
How to Calculate Your Due Date. View Sources. March of Dimes, What is Full Term? Week by Week. In boys, the testicles have begun to descend from the scrotum. Cell: The smallest unit of a structure in the body. Cells are the building blocks for all parts of the body.
Egg: The female reproductive cell made in and released from the ovaries. Also called the ovum. Embryo: The stage of development that starts at fertilization joining of an egg and sperm and lasts up to 8 weeks. Fallopian Tube: One of a pair of tubes through which an egg travels from the ovary to the uterus.
Fetus: The stage of human development beyond 8 completed weeks after fertilization. Gestational Age: How far along a woman is in her pregnancy, usually reported in weeks and days. Hormones: Substances made in the body that control the function of cells or organs. The LMP is used to estimate the date of delivery.
Placenta: An organ that provides nutrients to and takes waste away from the fetus. Scrotum: The external genital sac in the male that contains the testicles. Surfactant: A substance made by cells in the lungs. This substance helps keep the lungs elastic and keeps them from collapsing. Testicles: Paired male organs that make sperm and the male sex hormone testosterone. Also called testes. Trimesters: The 3-month periods of time in pregnancy.
They are referred to as first, second, or third. Ultrasound Exam: A test in which sound waves are used to examine inner parts of the body. During pregnancy, ultrasound can be used to check the fetus. Uterus: A muscular organ in the female pelvis.
During pregnancy, this organ holds and nourishes the fetus. Also called the womb. Vagina: A tube-like structure surrounded by muscles. The vagina leads from the uterus to the outside of the body. Copyright by the American College of Obstetricians and Gynecologists.
All rights reserved. Read copyright and permissions information. This information is designed as an educational aid for the public. It offers current information and opinions related to women's health. It is not intended as a statement of the standard of care. It does not explain all of the proper treatments or methods of care. It is not a substitute for the advice of a physician. The brain and spine begin to form. Cardiac tissue starts to develop. Muscles of the eyes, nose, and mouth form.
Webbed fingers and toes poke out from developing hands and feet. The lungs start to form the tubes that will carry air in and out after birth. The inner ear begins to develop. At 37 weeks, your pregnancy is considered full-term.
The average baby weighs around kg by now. Your baby is ready to be born, and you'll be meeting them some time in the next few weeks.
Your baby's gut digestive system now contains meconium — the sticky green substance that will form your baby's first poo after birth. It may include bits of the lanugo fine hair that covered your baby earlier in pregnancy.
When you're around 37 weeks pregnant, if it's your first pregnancy, your baby moves down ready to be born.
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