42 days of pregnancy can see the embryo and fetal heartbeat

If a woman is pregnant, a gestational sac will appear around 30 days, followed by a fetal bud and then a fetal heartbeat. Some women will be very anxious if they do not find the fetal bud and fetal heartbeat during prenatal check-ups in the early stages of pregnancy, especially women who have just become pregnant. So, can you see the fetal bud and fetal heartbeat on the 42nd day of pregnancy? Let's take a look.

Can I see the embryo and fetal heartbeat at 42 days of pregnancy?

The 42nd day of pregnancy is about 6 weeks of pregnancy, and the fetal heartbeat and embryo are usually not visible. At this time, the diameter of the gestational sac is about 1-2cm. The gestational sac is relatively small, and the fetal heart and fetal bud are difficult to see, but this is not absolute and is related to the early or late ovulation. If ovulation occurs early and the fertilized egg is formed early, the fetal heartbeat and fetal bud can sometimes be seen on the 42nd day of pregnancy. An ultrasound must be done on the 42nd day of pregnancy to rule out ectopic pregnancy. If no intrauterine gestational sac is seen during B-ultrasound at 42 days of pregnancy, a blood test for HCG should be done. B-ultrasound combined with blood HCG can determine whether there is an ectopic pregnancy relatively early.

When is the latest time for the fetal heartbeat to appear?

The embryonic bud and fetal heart refer to the first two weeks of the development of the fertilized egg, which is called the pregnant egg. Later, various organs gradually form. Before 8 weeks of pregnancy, it is called the embryo (or fetal bud); the third to first month and four weeks of pregnancy is called the fetal bud period. As the embryo develops, the gestational sac is formed in 30-40 days, the fetal bud is formed in 40-50 days, and the fetal heart is formed in 50-60 days. Therefore, B-ultrasound should generally be done around 60 days. At this time, you can see whether the gestational sac, fetal bud, and fetal heart are normal. The period from the third trimester to the first month and four weeks of pregnancy is called the embryonic stage. ,

The embryo is 0.5-1 cm long and shaped like a small seahorse. The normal fetal heart rate is regular and strong, like the ticking of a clock, at 120-160 beats/minute. If it is <120 beats/minute or >160 beats/minute, you can listen to it again at intervals of 10-20 minutes. If it is still abnormal, it indicates fetal intrauterine hypoxia. If the fetal heart rate is within the abnormal range and is accompanied by irregular fetal heart rhythm, it indicates that the fetal hypoxia is more serious.

The earliest fetal heartbeat can be seen at six weeks, and the latest at eight weeks.