Where is the gestational sac located on the ovary at 45 days of pregnancy?

On the 45th day of pregnancy, the gestational sac is usually located in the uterine cavity. If it appears in the ovary, it is an ovarian pregnancy in ectopic pregnancy. Ovarian pregnancy refers to the implantation and development of a fertilized egg in the ovarian tissue. It is a rare type of ectopic pregnancy, with an incidence rate of less than 1% of all pregnancies. It needs to be confirmed through ultrasound examination and treated in time.

Under normal circumstances, the fertilized egg will implant in the lining of the uterine cavity after being transported in the fallopian tube. The occurrence of ovarian pregnancy may be related to fallopian tube dysfunction, pelvic inflammation, endometriosis and other factors. Ultrasound examination shows the presence of a gestational sac-like structure in the ovarian area without a typical endometrial line around it, which may be accompanied by an increase in ovarian volume or a corpus luteum cyst. Patients may experience postmenopausal vaginal bleeding, severe unilateral pain in the lower abdomen and other symptoms. In severe cases, intra-abdominal bleeding may occur due to ovarian rupture.

Ovarian pregnancy needs to be differentiated from acute abdomen such as fallopian tube pregnancy and corpus luteum rupture. After diagnosis, it is usually recommended to terminate the pregnancy and choose methotrexate injection drug treatment or laparoscopic surgery to remove the pregnancy tissue according to the condition. During conservative treatment, changes in blood human chorionic gonadotropin levels need to be closely monitored. Surgical treatment may require removal of part of the ovarian tissue, but in most cases ovarian function can be preserved.

If you find abnormal abdominal pain or vaginal bleeding after pregnancy, you should seek medical attention immediately to check for ectopic pregnancy. Women preparing for pregnancy should do pre-pregnancy examinations and promptly treat basic diseases such as pelvic inflammatory disease to reduce the risk of ectopic pregnancy. In the early stages of pregnancy, ultrasound examination must be carried out according to the doctor's instructions to clarify the location and development of the gestational sac.