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It is common to have many questions about what this early development truly involves and what is to be expected.
We have gathered information from different sources in order to provide the best guidelines of what normal early fetal development looks like.
Gestational age is the age of the pregnancy from the last normal menstrual period (LMP), and fetal age is the actual age of the growing baby.
Most references to pregnancy are usually in gestational age rather than fetal age development, but we have included both so that it is clear what stage development is being discussed.
When conception takes place, the sperm will penetrate an egg and create a single set of 46 chromosomes called a zygote – the basis for a new human being.
A key fact to remember when choosing an ultrasound is that a transvaginal ultrasound can detect development in the uterus about a week earlier than a transabdominal ultrasound.Development Around 5 weeks, the gestational sac is often the first thing that most transvaginal ultrasounds can detect.This is seen before a recognizable embryo can be seen.A blood test can be used to monitor h CG levels and progesterone levels.Ultrasounds can be used to visually see what development is taking place in the uterus and to measure the progress.
Within this time period, a yolk sac can be seen inside the gestational sac.