The pregnancy sac can be seen on the 35th day of pregnancy if the menstrual period is usually regular around 28 to 30 days. However, if the menstrual cycle is long or ovulation is delayed, the gestational sac cannot be seen. It is mainly related to the length of the menstrual cycle, the early or late ovulation and the way of examination.
1. For women with regular menstrual cycles and normal ovulation, the gestational sac can be seen at the earliest on the 35th day of pregnancy by ultrasound, but it may not be seen during abdominal ultrasound, and the gestational sac can usually not be seen until about 42 days after menopause.
2. If a woman’s menstrual cycle is usually long, late ovulation, fertilized egg implantation late, 35 days pregnant when doing ultrasound generally can not see the pregnancy sac, it is best to wait until a week to go to the hospital for examination, under normal circumstances can see the pregnancy sac.
35 days pregnant, it is recommended to go to the hospital to check the blood HCG and progesterone, if HCG doubled normal, progesterone is normal, temporarily do not need to do ultrasound, can wait until the menopause of about 42 days to do ultrasound, most of them can see the gestational sac to determine the uterus pregnancy.