Is it normal to have no fetal heartbeat or fetal bud at 50 days of pregnancy?

Generally, if there is no fetal heartbeat or fetal bud detected at 50 days of pregnancy, it may be considered normal in cases where the pregnant woman has a long menstrual cycle or late ovulation resulting in a smaller actual gestational age. However, if the woman has regular menstrual cycles and the embryo develops abnormally, it may indicate an abnormal condition. Detailed analysis is as follows:

If a woman typically has long menstrual cycles, exceeding 35 days or longer, ovulation may occur later, and the fertilized egg may implant later as well. At 50 days of pregnancy, the actual gestational age might be insufficient, and the embryo may not have fully developed yet, which is why the fetal heartbeat or bud cannot be seen. In such cases, waiting for 1–2 weeks and undergoing a follow-up examination usually allows for the detection of a normal fetal heartbeat and bud.

For women with regular menstrual cycles occurring approximately every 28–30 days, at 50 days of pregnancy the embryo should have developed a fetal heartbeat and bud according to standard gestational age calculations. If these are still undetected, and if blood HCG levels are rising slowly or declining, or progesterone levels are low, this may indicate poor embryonic development, possibly due to chromosomal abnormalities or embryonic arrest.

During early pregnancy, it is important to closely monitor physical changes. If abnormalities such as abdominal pain or vaginal bleeding occur, seek medical attention promptly. If no fetal heartbeat or bud is detected, do not panic needlessly; follow your doctor's instructions for follow-up examinations or further tests to clarify the situation.