Pregnancy SymptomsEarly Signs and What They May Mean
Noticing changes in your body can bring excitement, curiosity, or uncertainty. Early pregnancy symptoms often overlap with premenstrual symptoms, which can make it difficult to know what is happening. This page explains common pregnancy symptoms, what causes them, and when testing may provide clearer answers. If you would like to return to the Am I Pregnant guide, visit the Am I Pregnant hub.Pregnancy Topics
Illnesses with Pregnancy-Like Symptoms
How to Know if You are Pregnant
Pregnancy symptoms differ from woman to woman and pregnancy to pregnancy; however, one of the most significant signs of pregnancy is a missed period. The surest way to know you’re pregnant is to take a pregnancy test.
What are the Most Common Early Signs of Pregnancy?
- Missed period. If you’re in your childbearing years and a week or more has passed without the start of an expected menstrual cycle, you might be pregnant. However, this symptom can be misleading if you have an irregular menstrual cycle.
- Tender, swollen breasts. Early in pregnancy hormonal changes might make your breasts sensitive and sore. The discomfort will likely decrease after a few weeks as your body adjusts to hormonal changes.
- Nausea with or without vomiting. Morning sickness, which can strike at any time of the day or night, often begins one month after you become pregnant. However, some women feel nausea earlier and some never experience it. While the cause of nausea during pregnancy isn’t clear, pregnancy hormones likely play a role.
- Increased urination. You might find yourself urinating more often than usual. The amount of blood in your body increases during pregnancy, causing your kidneys to process extra fluid that ends up in your bladder.
- Fatigue. Fatigue also ranks high among early symptoms of pregnancy. During early pregnancy, levels of the hormone progesterone soar — which might make you feel sleepy.
When Do Pregnancy Symptoms Start?
You may experience pregnancy symptoms within a week of conception. Some women report that they did not experience any symptoms for a few weeks. Click here if you need a free test or ultrasound.
Other pregnancy signs and symptoms during the first trimester may include:
- Mood Swings. Expecting mothers frequently experience mood swings. This is primarily caused by the hormonal changes that affect the neurotransmitters of the brain. Some may experience elevated highs and lows, and others alternate between states of happiness and depression or anxiety. Mood swings are normal; but, if you’re struggling with depression or extended periods of sadness, please contact your healthcare provider. Some women prefer to go directly to a counselor or mental health professional.
- Backaches. Lower backaches are common. It can occur with the onset of pregnancy, but it’s usually experienced later as the pregnancy progresses, around pregnancy week 27 to week 34.
- Headaches. Experts believe the sudden rise of hormones and/or blood flow in your body leads can cause headaches. There is an approximate 50% increase in the volume of blood flowing during your pregnancy.
- Food cravings or food aversions. The food expecting women crave or seek to avoid varies and is quite sporadic. It is alright to allow yourself the freedom to pursue those cravings and avoid the things you don’t want as long as you are getting the nutrition you need for a healthy pregnancy. These cravings or aversions can occur early in pregnancy or anytime throughout your pregnancy.
- Darkening of the Areolas. It’s normal if the areolas, area around your nipples will darken.
- Bloating. Hormonal changes during early pregnancy can cause you to feel bloated, similar to how you might feel at the start of a menstrual period.
- Light spotting. Sometimes a small amount of light spotting is one of the first signs of pregnancy. Known as implantation bleeding, it happens when the fertilized egg attaches to the lining of the uterus — about 10 to 14 days after conception. Implantation bleeding occurs around the time of a menstrual period. However, not all women have it.
What Else Could It Be?
A missed or delayed period, the most commonly reported first sign of pregnancy, could be caused by:
- Pending menstruation
- Excessive weight gain or loss
- Fatigue or exhaustion
- New workout regimen
- Hormonal imbalance
- Tension or stress
- Change in birth control usage
- Various illnesses
- Breastfeeding
Nausea or morning sickness, the second most frequently cited symptom of pregnancy, might be explained by:
- Food poisoning
- Tension or stress
- Anxiety
- Change in hormonal birth control
- Other stomach ailments
Tender or changing breasts, the third most noted pregnancy symptom, might be triggered by:
- Hormonal imbalance
- Change in hormonal birth control
- Impending menstruation
Fatigue or tiredness can be brought on by:
- Tension or stress
- Exhaustion from working too hard
- Depression or other mental health struggles
- Common cold or flu
- New workout regimen
- Allergies or other ailments
- Lack of sleep
- Improper nutrition
- Pending menstruation
What Do I Do Next?
If you would like to speak to someone about your pregnancy symptoms or the possibility of being pregnant, click the chat button below or call us toll free at 1-800-672-2296.
- If you need a free pregnancy test or ultrasound you can use your zip code to find a free pregnancy testing center.
- Questions about paternity? Call for free paternity info at 1-800-798-0580.
Want to Know More?
What is Implantation Bleeding?
Why Early Pregnancy Symptoms Occur
Most early pregnancy symptoms are caused by hormonal changes, especially rising levels of human chorionic gonadotropin (hCG), progesterone, and estrogen.1 These hormones support implantation and early fetal development. As hormone levels rise, your body begins adjusting — sometimes subtly, sometimes noticeably.
See what hCG levels mean at each stage of early pregnancy
Missed Period
A missed period is often the first noticeable sign of pregnancy. However, late periods can also result from stress, hormonal imbalance, illness, travel, or weight changes.
If your period is late and you are sexually active, taking a pregnancy test may provide clarity.
Implantation Bleeding
Some individuals experience light spotting when the fertilized egg implants into the uterine lining. Implantation bleeding typically occurs 6–12 days after ovulation, is lighter than a normal period, and lasts one to two days. Not everyone experiences it.
Find out whether your spotting could be implantation bleeding
Breast Changes
Hormonal changes may cause tenderness, swelling, darkening of the areola, and increased sensitivity. These symptoms may feel similar to premenstrual breast changes but often persist longer in pregnancy.
Fatigue
Increased progesterone levels may contribute to fatigue in early pregnancy. Many individuals feel unusually tired during the first trimester. Rest and balanced nutrition can help support energy levels.
Nausea and Morning Sickness
Nausea may begin as early as two to four weeks after conception. It may occur in the morning, throughout the day, or with certain smells or foods. Symptoms vary widely between individuals.
See the full list of early pregnancy signs and what they mean
Frequent Urination
Increased blood flow and hormonal changes may cause more frequent urination early in pregnancy. This symptom often continues throughout pregnancy.
Pregnancy-Like Symptoms Without Pregnancy
Some symptoms may mimic pregnancy but have other causes, including hormonal fluctuations, premenstrual syndrome, stress, or gastrointestinal issues. Testing provides more reliable answers than symptoms alone.
Learn which symptoms point to pregnancy versus other causes
False Pregnancy (Pseudocyesis)
In rare cases, individuals may experience pregnancy symptoms without being pregnant. This condition is called false pregnancy or pseudocyesis. Medical evaluation is important if symptoms are confusing or persistent.
Learn about false pregnancy and what causes it
Cryptic Pregnancy
A cryptic pregnancy occurs when someone does not realize they are pregnant until later stages. These cases are uncommon but documented.
Find out what a cryptic pregnancy is and how it happens
When to Take a Pregnancy Test
Symptoms alone cannot confirm pregnancy. Testing is most accurate after a missed period. If results are unclear, repeat testing in several days or consult a healthcare provider.
Find out when and how to test for the most accurate result
Get guidance on confirming your pregnancy and next steps
When to Seek Medical Care
Contact a healthcare provider if you experience:
- Severe abdominal pain
- Heavy bleeding
- Dizziness or fainting
- Persistent severe nausea
Finding Clarity
Not every symptom means pregnancy — and not every pregnancy begins with noticeable symptoms. If you believe you may be pregnant, testing and medical confirmation provide the clearest answers.
You deserve clear information and reassurance as you navigate early signs.
