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You're pregnant! What changes can you expect?
Pregnancy

You're pregnant! What changes can you expect?

3 min readWeek 6
Key takeaways
3 min
  • Expect breast changes including fullness and sensitivity from the very first weeks as your body prepares for lactation.
  • Recognize that up to 80% of pregnant women experience morning sickness, typically peaking between weeks 7-12 of pregnancy.
  • Prepare for increased fatigue affecting 95% of pregnant women, requiring 8-10 hours of sleep nightly during the first trimester.
  • Monitor abdominal discomfort and understand when growing uterus pain is normal versus when to consult your doctor.
  • Accept mood swings as normal due to increased progesterone levels and share your feelings with loved ones for better emotional support.

Early pregnancy symptoms include breast changes, morning sickness (affecting 80% of women), extreme fatigue, abdominal discomfort from uterine growth, mood swings from hormonal changes, and frequent urination. These symptoms typically begin within the first few weeks and peak during the first trimester.

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People around you may not yet suspect you are pregnant, but you can definitely feel that something is happening! Here are some typical symptoms most moms-to-be experience during the first trimester.

Your breasts grow

From the very first weeks of pregnancy, your breasts start preparing for lactation [1]. They become fuller, heavier, and feel firmer. Your nipples may also become very sensitive, but don’t worry, sensitivity will eventually decrease, and your breasts will return to their pre-pregnancy size once you have your baby and after you stop breastfeeding [2].

Nausea

It’s not just about food. Water, certain smells, and even the thought of specific foods can cause nausea. Up to 80% of expectant mothers experience morning sickness [3]. It usually starts between weeks four and nine, peaking around weeks seven to twelve. By the end of the first trimester, nausea tends to get better although aversion to certain foods and smells may last until delivery [3].

Fatigue sets in

Mornings may feel impossible, and you may struggle to keep your eyes open at work. Fatigue and sleepiness affect 95% of pregnant women [4]. The reasons aren’t fully understood, but it’s likely due to several factors, including high progesterone levels, lower blood pressure, and changes in hemoglobin [5]. By the second trimester, your body will adjust, and your energy levels should return to normal. For now, rest as much as possible, and remember that pregnant women need eight to ten hours of sleep per night [6].

Abdominal discomfort

Don’t be afraid if you feel as if you might have your period; your lower abdomen may feel tight or you may notice a pulling sensation in your lower back. This is because the uterus is growing and stretching the surrounding ligaments. These symptoms can worsen if you are constipated or bloated (common complaints during the first trimester). If the pain eases when you change positions, there’s likely no need to worry. However, if you experience bleeding, severe pain, fever, or dizziness, consult your doctor [7].

Mood swings

You might find yourself experiencing a full range of emotions within half an hour; from joy and anticipation to worry and sadness [8]. You can blame progesterone, which makes moms-to-be more emotionally sensitive. Even a long-awaited and planned pregnancy can be stressful. People who cope best with stress are the ones who express their feelings and share them with loved ones [9]. So, don’t hold back, allow yourself to feel joy, sadness, and fear.

Frequent urination

It’s very common to feel the need to go to the bathroom more often and at all hours of the day and night. Increased blood flow to the pelvic area and the growing uterus put pressure on the bladder making you want to pee more than usual [8]. Frequent urination may continue throughout pregnancy and is one of those things you will learn to manage.

You may not experience all these symptoms at once. Some will pass quickly, while others may last longer. Some moms-to-be don’t feel pregnant until their belly starts growing, and that’s normal too! [10]

Frequently asked questions

The earliest pregnancy signs include breast tenderness and fullness, fatigue, and frequent urination. These symptoms can appear within the first few weeks after conception due to hormonal changes.

Morning sickness typically begins between weeks 4-9 of pregnancy and peaks around weeks 7-12. Up to 80% of expectant mothers experience some form of nausea during early pregnancy.

Pregnant women need 8-10 hours of sleep per night, especially during the first trimester. Increased fatigue affects 95% of pregnant women due to hormonal changes and increased progesterone levels.

Yes, mood swings are completely normal during early pregnancy due to increased progesterone levels. Sharing your feelings with loved ones and expressing emotions helps manage pregnancy-related stress better.

Contact your doctor if you experience bleeding, severe pain, fever, or dizziness along with abdominal discomfort. Normal growing pains should ease when you change positions.

Medical Disclaimer

This article is for informational purposes only and is not a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of your physician or qualified health provider with any questions you may have regarding a medical condition.

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Medically reviewed content

Reviewed by healthcare professionals · Updated June 2, 2025

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