How long does pregnancy last if the embryo is 7mm?

The embryo that people often talk about can also be called the fetal bud. After a woman is pregnant for one month, the embryo is basically formed. At the beginning, the embryo is very small. In the next period of time, it will grow slowly and make all kinds of preparations for the formation of the fetus in the future. When you go to the hospital for a check-up, you can clearly check the size of the embryo. So under normal circumstances, how long does it take for a woman to have a 7mm embryo?

How long does pregnancy last if the embryo is 7mm?

Generally speaking, after a normal egg and sperm meet, they will combine to form a fertilized egg. The fertilized egg will slowly move back to the uterine cavity in the fallopian tube, and finally successfully implant and begin to develop and grow into an embryo. After a period of time, the embryo will develop into a gestational sac, embryo, and fetal heart, and finally form a fetus. So how long does it take for the pregnancy to last if the embryo is 7mm?

When does the germ appear?

Under normal circumstances, the pulsation of the embryo and primitive heart tube can be seen under B-ultrasound 50-60 days after menstruation. If there is still no embryonic bud or fetal heartbeat after seven weeks of pregnancy, the pregnant mother should consider the possibility of embryonic development arrest and should go to the hospital in time to check the condition of the fetus.

How long is the pregnancy if the embryo is 7mm

According to the comparison table of embryo size and gestational week, the fetus grows to 0.4 cm in the 5th week of pregnancy and enters the embryonic period. The amniotic cavity expands, primitive cardiovascular system appears, and may pulsate. B-ultrasound can show a small gestational sac, which occupies less than 1/4 of the uterine cavity, or a fetal bud can be seen. By the sixth week of pregnancy, the fetus has grown to 0.85 cm, and the head, brain alveoli, facial organs, respiratory, digestive, and nervous organs of the fetus are differentiated. The fetal sac is clearly visible on B-ultrasound, and the fetal bud and fetal heartbeat are seen. Therefore, when the embryo grows to 7mm or 0.7cm, it is between the 5th and 6th weeks of pregnancy.

Causes of abnormal embryonic development

1. Genetic factors: If there are chromosomal abnormalities or genetic gene defects, common abnormalities include sperm or egg chromosomes.

2. Insufficient hormone secretion makes it difficult to support embryonic development and causes death.

3. The malformation of the uterine cavity makes it impossible for the embryo to grow.

4. Viral infection during pregnancy, exposure to radioactive substances, toxic chemicals, taking drugs prohibited during pregnancy, high temperature, microwaves, noise, excessive stimulation, etc.

5. Maternal factors: such as poor physical constitution or illness, cervical incompetence, luteal insufficiency, endometriosis, immune factors, diabetes, hyperthyroidism, etc.

6. Male factors: such as large amount of bacterial growth in semen and high sperm deformity rate.

What to do if the embryo is abnormal

If it is confirmed that the embryo has stopped developing, the pregnancy should be terminated surgically in a timely manner to avoid foreign matter remaining in the uterus and causing infection. If the initial test shows abnormal embryo development, the blood hcg and progesterone values ​​and B-ultrasound can be rechecked. If preserving the fetus is meaningless, the only option is to have an abortion as soon as possible.

If expectant mothers want to reduce the occurrence of abnormal embryo development, they must make preparations during the pregnancy preparation period, supplement folic acid reasonably under the guidance of a doctor, strengthen nutrition, take in a certain amount of protein and various vitamins, trace elements, etc., maintain a regular lifestyle, strengthen physical exercise, and provide a good environment for nurturing a healthy baby.