First Trimester

Early Pregnancy Signs: What to Expect in Your First Trimester

Learn about the most common symptoms and changes that happen during your first 12 weeks of pregnancy, from morning sickness to mood swings.

Those first few weeks after finding out you're pregnant can feel like a whirlwind. Your body is already working hard to support your growing baby, and you might be wondering what changes to expect. Here's what most women experience during their first trimester.

Most Common First Trimester Symptoms

Morning Sickness (That Can Happen Anytime)

About 7 out of 10 pregnant women deal with nausea during their first trimester. Despite the name "morning sickness," it can hit you at any time of day. For most women, it starts around week 6 and gets better by week 12-14.

What helps: Eating small, frequent meals, keeping crackers by your bed, staying hydrated, and getting enough rest can all make a difference.

Extreme Tiredness

Feeling completely wiped out is normal in early pregnancy. Your body is producing more of the hormone progesterone, which can make you feel sleepy. Plus, your body is working overtime to create your baby's life support system.

What helps: Listen to your body and rest when you can. Go to bed earlier and take naps if possible.

Breast Changes

Your breasts might feel tender, swollen, or tingly. You might also notice your nipples getting darker. These changes happen because your body is preparing for breastfeeding.

Frequent Urination

Running to the bathroom more often? That's your kidneys working harder to filter the extra blood in your system. As your uterus grows, it also puts pressure on your bladder.

Food Aversions and Cravings

Your sense of smell becomes stronger during pregnancy, which can trigger food aversions. You might suddenly hate foods you used to love, or crave things you never wanted before.

Emotional Changes

Pregnancy hormones can make your emotions feel like they're on a roller coaster. One minute you're excited, the next you might feel worried or tearful. This is completely normal.

What helps: Talk to your partner, friends, or family about how you're feeling. Consider keeping a journal or finding a pregnancy support group.

When to Call Your Doctor

While most first trimester symptoms are normal, some signs need immediate medical attention:

  • Heavy bleeding (more than light spotting)
  • Severe cramping or sharp abdominal pain
  • Persistent vomiting that prevents you from keeping fluids down
  • High fever (over 100.4°F)
  • Severe headaches that don't go away with rest

Remember: Every Pregnancy is Different

Some women have all these symptoms, others have just a few, and some lucky ones have hardly any symptoms at all. None of these patterns mean anything is wrong with your pregnancy.

If you're concerned about any symptoms you're having (or not having), don't hesitate to reach out to your healthcare provider. They're there to help you have a healthy pregnancy.

Quick Tip

Keep a simple journal of your symptoms and how you're feeling. This can be helpful when talking to your doctor and can help you remember this special time later on.

Frequently Asked Questions

When do pregnancy symptoms start?

Most women start noticing pregnancy symptoms between 4-6 weeks after their last menstrual period. However, some women may experience symptoms as early as 1-2 weeks after conception.

Is morning sickness normal in the first trimester?

Yes, morning sickness affects about 70-80% of pregnant women during the first trimester. Despite its name, it can occur at any time of day and usually improves by weeks 12-14.

What should I do if I have severe first trimester symptoms?

If you experience severe symptoms like persistent vomiting, severe cramping, or heavy bleeding, contact your healthcare provider immediately. These could be signs of complications that need medical attention.