Swelling of the upper part of the uterus during ovulation is a very common phenomenon and is also one of the important signs of pregnancy. During ovulation, the upper part of the uterus usually swells and becomes tender. This change is caused by the fertilized egg implanting and developing in the upper part of the uterus.

In addition, during ovulation, the upper part of the uterus is flushed with blood and hormones. These blood and hormones make the lining of the uterus softer and help the fertilized egg implant in the upper part of the uterus.

Therefore, swelling of the upper part of the uterus during ovulation is an important sign of pregnancy. If you feel uncomfortable during ovulation or have any concerns, it is recommended to seek medical advice promptly. If you plan to become pregnant, it is recommended to have a physical examination in advance to ensure your health.