The first trimester of pregnancy is a period of rapid, invisible transformation. Even before you have a visible baby bump, your body is working in overdrive to build a life support system. This guide covers the basics of what is happening, what is normal, and how to take care of yourself during these early weeks.

Common Symptoms and Changes

• Profound Fatigue: As your body dramatically increases progesterone production and builds the placenta, it is completely normal to feel more exhausted than you ever have before.

• Nausea and Aversions: Often referred to as “morning sickness,” nausea can strike at any time of day due to surging hCG levels. You may also find that previously loved foods suddenly seem unappealing.

• Breast Changes: Hormonal shifts often make breasts feel tender, swollen, or heavier very early in the pregnancy.

• Frequent Urination: Increased blood volume and a growing uterus mean your kidneys are working harder and pressing on your bladder.