Pregnancy Symptoms Week by Week: Complete Guide

Pregnancy Symptoms Week by Week: A Complete Guide

Pregnancy can feel different from week to week. One day you may feel tired and nauseous. A few weeks later, you may notice more energy, a growing belly, baby kicks, back pain, heartburn, or Braxton Hicks contractions.

This complete guide to pregnancy symptoms week by week explains common changes from early pregnancy through the final weeks before delivery. Every pregnancy is different, so you may not experience every symptom listed here.

Important: This article is for general education only and is not medical advice. Always follow the guidance of your OB-GYN, midwife, or healthcare provider. Mayo Clinic notes that first trimester changes can include breast tenderness, fatigue, nausea, and emotional changes, while ACOG emphasizes that every stage of pregnancy brings new questions and changes.

Weeks 1–2: Before Pregnancy Is Confirmed

Pregnancy dating usually begins from the first day of your last menstrual period. During weeks 1 and 2, you may not actually be pregnant yet. Your body is preparing for ovulation and possible conception.

Possible symptoms:

Normal period symptoms
Ovulation changes
Mild cramping around ovulation
Changes in cervical mucus
No pregnancy symptoms yet

Week 3: Possible Conception

Week 3 is often around the time conception may happen. Most women do not feel pregnancy symptoms this early, although some may notice very subtle changes.

Possible symptoms:

No obvious symptoms
Mild bloating
Light cramping
Breast sensitivity
Mood changes

Week 4: Early Pregnancy Signs

By week 4, some women may notice early pregnancy symptoms before or around a missed period. Others feel almost nothing.

Possible symptoms:

Missed period
Light spotting
Mild cramping
Breast tenderness
Fatigue
Positive pregnancy test

If you get a positive pregnancy test, call your healthcare provider to ask when to schedule your first prenatal appointment.

Weeks 5–6: Fatigue, Nausea, and Breast Tenderness

For many moms, pregnancy symptoms become more noticeable around weeks 5 and 6. Hormonal changes may bring nausea, fatigue, and breast changes.

Possible symptoms:

Morning sickness or nausea
Fatigue
Breast tenderness
Frequent urination
Food aversions
Mood changes

You may want to start a pregnancy journal now to record early symptoms, emotions, and first appointment questions. Explore the Momentiqa Pregnancy Journal Book here.

Weeks 7–8: Stronger First Trimester Symptoms

During weeks 7 and 8, symptoms may feel stronger. Nausea, smell sensitivity, food aversions, and exhaustion can be especially noticeable.

Possible symptoms:

Nausea or vomiting
Heightened sense of smell
Food cravings or aversions
Bloating
Constipation
Acne or skin changes
Emotional ups and downs

Weeks 9–10: Hormonal Changes Continue

Weeks 9 and 10 can still feel intense. Some moms feel very tired, while others begin adjusting to early pregnancy symptoms.

Possible symptoms:

Fatigue
Nausea
Breast growth or tenderness
Frequent urination
Headaches
Digestive changes
Mood swings

Weeks 11–12: Nearing the End of the First Trimester

By weeks 11 and 12, some symptoms may begin to ease, though this varies widely. You may still feel nauseous or tired, but you may also feel more hopeful as the first trimester nears its end.

Possible symptoms:

Less nausea for some moms
Continued fatigue
Bloating
Breast tenderness
Increased appetite
Emotional changes

Weeks 13–14: Beginning of the Second Trimester

The second trimester often brings more energy and fewer intense early symptoms for many moms. Mayo Clinic notes that some women feel less tired and may have more energy during the second trimester.

Possible symptoms:

Improved energy
Less nausea
Growing belly
Round ligament discomfort
Increased appetite
Skin changes

Weeks 15–16: Bump Changes and Body Awareness

During weeks 15 and 16, your belly may become more noticeable. Some moms begin to feel more connected to pregnancy as physical changes become visible.

Possible symptoms: