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Early Pregnancy Symptoms: What to Look For

Dr Karen Martin
Reviewed by Dr Karen MartinReviewed on 30.06.2025 | 4 minutes read
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Some women have an idea that they're pregnant from early on, as they’re attuned to the biological, mental and physical changes it can bring. This is especially true if you’ve been pregnant before. A test is, of course, the easiest and most reliable way to confirm you’re pregnant. But here are some of the tell-tale signs to look out for as your body adjusts.

What are the obvious symptoms of early pregnancy?

Pregnancy is divided into three trimesters, each characterized by distinct physical and hormonal changes. The first trimester spans the initial 12 weeks, encompassing the crucial early stages of fetal development. During this time, a woman's body undergoes remarkable transformations, heralded by a range of symptoms. Here are the top 5 most common and clear symptoms:

#1 Missed Period

The highest on the list is missing a period. Some women run like clockwork and so being just a day late can be a clear sign that something has changed. However, some women may experience light bleeding or spotting during early pregnancy, often mistaken for a period. It's crucial to note these variations and consider them alongside other symptoms.

#2 Morning Sickness and Nausea

Nausea is another common one, and this can happen with or without vomiting. Morning sickness, contrary to the name, can actually happen any time of the day and can happen in early pregnancy or a few months down the line. The exact cause of morning sickness is not fully understood, but hormonal changes, particularly the rise in human chorionic gonadotropin (hCG), play a role.

#3 Hormonal Changes

Early pregnancy triggers hormonal shifts that lead to noticeable changes in the breasts. Women may experience tenderness, swelling, and increased sensitivity. The areolas might darken, and veins may become more visible. These changes are attributed to hormonal fluctuations preparing the body for breastfeeding.

#4 Fatigue and Exhaustion

Feeling unusually tired or exhausted is common in early pregnancy. Hormonal changes, increased blood volume, and the body's effort to support the growing embryo contribute to fatigue. Adequate rest and self-care become paramount during this period.

#5 Frequent Urination

As early as the first few weeks of pregnancy, increased blood flow to the pelvic region and hormonal changes can lead to more frequent urination. The growing uterus exerts pressure on the bladder, intensifying the need to empty it regularly.

Other early pregnancy symptoms

  • Bloating and Constipation: Hormones can slow digestion, causing bloating and constipation. Drinking water, eating fiber, and staying active can help.

  • Food Aversions and Cravings: You might suddenly dislike some foods or crave others. This is caused by hormone changes.

  • Mood Swings: Hormones can make you feel more emotional or cause mood swings.

  • Light Spotting or Cramps: Some people have light bleeding and mild cramps when the fertilized egg attaches to the womb. If the bleeding is heavy or you have strong pain, talk to a doctor.

  • Metallic Taste: Some people notice a strange metallic taste in their mouth.

  • Sensitivity to Smells: Smells might seem stronger or more unpleasant than before.

How to confirm pregnancy

  • Home Pregnancy Tests: These tests check for the pregnancy hormone hCG in urine. They are usually accurate if taken after a missed period. Follow the instructions on the package.

  • If the Test is Negative: If you still think you’re pregnant, wait a few days and take another test. Sometimes it takes time for the hormone to show up.

  • See a Doctor: If you get a positive test, make an appointment with your doctor or midwife. If your test is negative but you still have symptoms, see your doctor to check for other causes.

What to Do While Waiting

  • Avoid Certain Medicines and Foods: Don’t take medicines or eat foods that aren’t safe during pregnancy.

  • Take Supplements: Start taking prenatal vitamins like folic acid and vitamin D to help the baby’s development.

  • Rest and Self-Care: Get plenty of rest, eat healthy foods, and talk to family or friends for support.

Next steps after confirming pregnancy

  • Book Your First Appointment: Book an appointment with a doctor or midwife to talk about your health and get advice.

  • Start Prenatal Care: Your doctor or midwife will guide you on what vitamins to take and what changes to make in your lifestyle.

  • Make Healthy Choices: Avoid alcohol, smoking, and too much caffeine. Talk to your doctor about any medicines you’re taking.

  • Consider Classes: Antenatal classes can help you prepare for pregnancy and caring for a new baby.

Understanding these signs and what to do next can help you feel more confident as you start your pregnancy journey. Always talk to a healthcare provider if you have questions or concerns.

The AI in healthwords.ai refers to conversational search, while the only AI tools used for articles are grammar and language improvements -  medical content remains rigorously authored by healthcare professionals.

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This article has been written by UK-based doctors and pharmacists, so some advice may not apply to US users and some suggested treatments may not be available. For more information, please see our T&Cs.
Dr Karen Martin
Reviewed by Dr Karen Martin
Reviewed on 30.06.2025
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