Is it normal not to have a fetal heartbeat or fetal bud at 7 weeks of pregnancy?
Dec 20, 2024
Source: Cainiu Health
Dr. Zhang Lu
Introduction
Under normal circumstances, the absence of fetal heart and fetal bud at seven weeks of pregnancy may be a normal physiological phenomenon, or it may indicate embryonic arrest or an abnormal pregnancy. If you experience any discomfort, please seek medical attention promptly and receive symptomatic treatment under the guidance of a qualified physician. If no fetal heart or fetal bud is detected at seven weeks of pregnancy, it is recommended that the pregnant woman undergoes a follow-up ultrasound examination after 1 to 2 weeks to monitor the development of the embryo.
Generally speaking, pregnancy week seven refers to the seventh week of gestation. The absence of fetal heartbeat and fetal bud at seven weeks of gestation needs to be evaluated based on specific circumstances to determine whether it is normal. If the menstrual cycle is long or irregular, it might be normal; however, if the menstrual cycle is regular, it might not be normal. If any discomfort occurs, timely medical consultation is recommended. Detailed analysis is as follows:
Some women have longer or irregular menstrual cycles, which may delay ovulation and cause later implantation of the fertilized egg. Therefore, at seven weeks of gestation, the fetal heart and bud might not have developed enough to be detected by ultrasound. In this case, the absence of a fetal heartbeat and fetal bud might be normal. It is recommended that the pregnant woman verify her menstrual cycle and undergo a human chorionic gonadotropin (hCG) test to confirm the actual gestational age.
If the pregnant woman has a regular menstrual cycle and no abnormalities in the time of conception, but no fetal heartbeat or fetal bud is detected at seven weeks of gestation, it may indicate that the embryo has stopped developing. There are various causes for embryonic arrest, which may be related to chromosomal abnormalities, maternal diseases, environmental factors, etc.
If no fetal heartbeat or fetal bud is detected at seven weeks of gestation, it is recommended that the pregnant woman undergo a follow-up ultrasound examination after 1–2 weeks to monitor the embryo's development.
