How many weeks of pregnancy does the fetal heartbeat and fetal bud appear?

Under normal circumstances, the fetal bud and initial vascular heartbeat will appear on transabdominal ultrasound by the 7th week of pregnancy, and transvaginal ultrasound will detect the fetal bud and fetal heartbeat one week earlier than transabdominal ultrasound. At 5 weeks of pregnancy, a gestational sac will appear in the uterine cavity. For a well-developed gestational sac, a yolk sac will also appear. At 6 weeks of pregnancy, a fetal bud will appear in the uterine cavity under B-ultrasound detection. At 7 weeks of pregnancy, a fetal bud and initial primitive heart tube beat will appear in the uterine cavity. Ultrasound examination can show the initial primitive heart tube beat. By the 9th week of pregnancy, the baby is born. By the 12th week of pregnancy, the fetus and its attachments appear, including the embryo and amniotic fluid of the pregnant woman.

Generally, an ultrasound at around 6-8 weeks of pregnancy can show the embryo, fetal heartbeat and fetal heart rate. The ovulation time and implantation time are different for each person, so the baby's development rate is different. During pregnancy, pay attention to regular prenatal checkups and make sure the fetus is within the size of the gestational age. During pregnancy, you should increase your nutrition, eat more beans, high-protein foods or foods high in vitamins, which can help the fetus grow healthily. It is strictly forbidden to have sexual intercourse within the first three months of pregnancy, and excessive exercise is not allowed, otherwise the fetus will be unstable and uterine contractions can easily lead to miscarriage.

First of all, have a blood test half a month after having sex. If the blood HCG shows positive (), it indicates pregnancy. Secondly, if the menstruation is delayed for more than 1 week, that is, the menstruation is amenorrhea for more than 37 days, the urine HCG can be tested positive (), and the B-ultrasound examination shows that there is a gestational sac in the uterine cavity, but the embryonic bud and fetal heart are not visible.

Finally, on the 49th day of pregnancy, which is about 7 weeks, a transvaginal ultrasound examination was performed, and under normal circumstances, the embryonic bud and fetal heartbeat could be seen. Therefore, during vaginal ultrasound examination during pregnancy, the gestational sac can be seen at around 37 days, and the fetal bud and fetal heartbeat can be seen at around 49 days. If an abdominal B-ultrasound examination is performed, the results will be about one week later than those of a vaginal ultrasound examination. That is, an abdominal B-ultrasound examination will show the embryonic bud and fetal heartbeat at about 8 weeks, while a vaginal ultrasound examination will show the embryonic bud and fetal heartbeat at about 7 weeks.