The first trimester is the earliest stage of pregnancy where your body starts to undergo major changes. Here’s what you can expect, including symptoms.

Feb 27, 2024 · During the first few months of pregnancy, amazing changes happen quickly. This part of pregnancy is called the first trimester. Knowing what physical and emotional changes to expect can …

Jan 18, 2025 · WebMD explains the first trimester of pregnancy. You'll find out what to expect during the first trimester, along with signs and symptoms to know you're pregnant.

First Trimester The first trimester lasts until the end of the 13th week of pregnancy. You may begin feeling signs of pregnancy like nausea and tender breasts. Fetal development starts when the egg is …

Nov 9, 2017 · About 10 to 14 days after, an egg is released, combines with a sperm, and conception occurs. A baby develops rapidly during the first trimester. The fetus begins to develop a brain and …

May 30, 2025 · In this guide, we'll break down everything you need to know about the first trimester, from common symptoms to helpful tips for taking care of yourself and your growing baby.

A healthy first trimester is crucial to the normal development of your baby. You may not be showing much on the outside, but inside, all the major body organs and systems of the fetus are forming.

The first trimester begins on the first day of your last menstrual period and lasts until the end of week 12. This means that by the time you know for sure you're pregnant, you might already be 5 or 6 weeks …

Oct 9, 2025 · The first trimester of pregnancy lasts from week 0 (the start of your last menstrual period) through the end of week 12 (when you’re three months pregnant). That’s right, you’ll count your …

Sep 20, 2023 · From when to expect common pregnancy symptoms to what to avoid, here's everything you need to know about your first trimester of pregnancy by week.