|MadSci Network: Development|
Hi Sara, Nice question but unfortunately this is not always the case! The reason the baby (or fetus) is normally positioned upside down in its mothers womb (or uterus) is simply because it is a better position for birth – head first. In fact for the first six months of pregnancy the fetus is upright and turns over in preparation to be born! The ideal position is head- first, so the shoulders can follow and then the rest is easy. In one complication of birth the baby can be “breach” which means that he/she is feet-first! Usually because something prevented him/her turning over when he/she was supposed to. If the baby is this way round it is easier for legs and arms to get stuck or twisted and complicate the birth. Being upside down is natures way of ensuring that the baby is born without any harm to itself or the mother. Remember though, that the fetus doesn’t know which way is up or down because it floats surrounded by a watery liquid called “amniotic fluid”. So it is not as if he/she is doing a headstand for the last 10-12 weeks of pregnancy, because the fluid supports his/her weight. Hope this answers your question, and keep asking more!
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