What are the symptoms for first 3 weeks of pregnancy?

The first three weeks of pregnancy are often referred to as the embryonic stage, and some of the common symptoms during this time may include:

1. Implantation Bleeding: Some women may experience light spotting or bleeding around the time of implantation, which occurs when the fertilized egg attaches to the wall of the uterus. This usually happens about 6-12 days after conception.

2. Breast Tenderness: Increased blood flow to the breasts can lead to tenderness, swelling, and a feeling of heaviness.

3. Fatigue: Progesterone levels rise during early pregnancy, which can cause extreme tiredness and fatigue.

4. Nausea and Vomiting: Morning sickness, also known as nausea and vomiting, usually begins around the fourth week of pregnancy and peaks around the eighth to ninth week. It can occur at any time of the day but is often most intense in the morning.

5. Frequent Urination: As the levels of the hormone human chorionic gonadotropin (hCG) increase, they stimulate the kidneys to produce more urine, resulting in frequent trips to the bathroom.

6. Mood Swings: Hormonal changes during early pregnancy can cause emotional fluctuations, including mood swings, irritability, and increased sensitivity.

7. Food Aversions and Cravings: Changes in taste and smell can lead to strong food aversions or unusual food cravings.

8. Constipation: Progesterone can slow down digestion, leading to constipation.

9. Bloating: Increased hormone levels and the growth of the uterus can cause bloating and a feeling of fullness in the abdomen.

10. Lightheadedness and Dizziness: Changes in blood pressure and blood sugar levels can cause occasional dizziness or lightheadedness.

It's important to note that not all women experience all of these symptoms, and the severity can vary from person to person. If you have any concerns or questions about your pregnancy symptoms, it's advisable to consult with your healthcare provider for proper guidance.