An artificial womb is a medical device in which fetuses are theoretically able to gestate. As of 2014, current research has only had success in keeping goat and mouse embryos and one human embryo alive for a matter of days inside a machine filled with amniotic fluid.
A doctor that treats premature babies is called a neonatologist, as reported by the American Academy of Pediatrics. Neonatologists specialize in the complex care of premature newborn babies, and in some cases may also assist with the pregnancy before birth and during labor.
Fetal movement begins in the second trimester. Some expectant mothers can feel their baby moving by the fourth month, according to What to Expect. Most women experience the sensation of fetal movement by the fifth month of pregnancy.
On average, a baby in the womb has a heart rate of 110 to 160 beats per minute. This often varies by up to 25 beats per minute, according to John Hopkins Medicine. Some conditions during pregnancy or labor may affect fetal heart rate.
Babies do cry while in the womb, according to WebMD. Babies can express their unhappiness with silent crying as early as the 28th week of pregnancy. The discovery of fetal crying in the womb was made by accident when researching the effects of tobacco and cocaine on pregnancy.
The easiest way to make a baby move in the uterus is to have a snack and relax while lying on one's side, according to What to Expect. The surge in blood sugar produced by a snack gives the baby a rush of energy that promotes movement. Ceasing one's own movement makes it easier for a woman to detect
Babies start opening their eyes at approximately 26 weeks gestation. At that point their eyelids and eyelashes are fully formed, and they practice using their eyes by blinking and moving them around.
The sex of a baby is determined at the moment of conception, according to WebMD. If the sperm has an X chromosome, the baby is a girl, but if it has a Y chromosome, the baby is a boy. However, the fetus doesn't develop reproductive organs for another 60 days.
Babies generally start to kick in the womb around seven weeks. Most women can feel the baby moving by the second trimester.
A baby born from 23 to 32 weeks has a chance of surviving outside of the womb, while babies born before 23 weeks have little to no chance of surviving, as noted by Healthline. A baby born between weeks 23 and 28 will need considerable help to survive, including assistance with breathing and feeding.