Pregnancy Symptoms During the First Trimester

Pregnancy symptoms often vary between women and even between the same woman during different pregnancies. Many experience symptoms within a week of conception and others do not for a few weeks. Read on to learn the first signs that may indicate that you are expecting!

Most Common Pregnancy Symptoms

  1. Missing Your Period – If you have an irregular menstrual cycle, this pregnancy symptom could be misleading. However, we still suggest that if you have missed your monthly period to first take a home pregnancy test to see if your results are positive. If you test positive, be sure to book an OBGYN appointment with Dr. Hill as soon as possible to start your prenatal journey. Typically, it takes about three to four weeks from the first day of your last period before there is enough hCG in your body for a positive pregnancy test. [1] hCG or human chorionic gonadotrophin is a hormone that starts building in your body from the moment of conception and will multiply quickly during the beginning stages of pregnancy.
  2. Sensitive & Swollen Breasts – This is one of the earliest signs of pregnancy that is triggered by hormonal changes which are getting your milk ducts ready to feed your baby. The discomfort will likely decrease after a few weeks as your body adjusts to hormonal changes. [2]
  3. 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. [3] If morning sickness is interfering with your daily activities and lifestyle, please consult with Dr. Hill on ways to manage your nausea.
  4. Increased Urination - This happens because you have more blood than before. During pregnancy, your body’s blood supply increases. Your kidneys filter your blood and remove the extra waste. This waste leaves your body as urine. The more blood in your body, the more you will have to urinate. [1] It is still incredibly important to continue to stay hydrated during pregnancy and make sure you are drinking enough water daily, despite the increase in trips to the restroom.
  5. Extreme Fatigue - No one knows for certain what causes sleepiness during the first trimester of pregnancy. However, a rapid rise in the levels of the hormone progesterone during early pregnancy might contribute to fatigue. [2] Be sure to prioritize your sleep and rest during pregnancy when possible.

If you have missed a period and notice some of the above pregnancy symptoms, book your pregnancy doctor appointment with Dr. Hill right away. It is best to confirm your pregnancy early on in your first trimester so that you can begin prenatal care.



  1. “Pregnancy: Am I Pregnant?”

  1. “Symptoms of Pregnancy: What Happens First.”

  1. “Early Signs of Pregnancy.”

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