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.
The yolk sac will be the earliest source of nutrients for the developing fetus.
Progesterone The follicle from which the egg was released is called the corpus luteum.
It will release progesterone that helps thicken and prepare the uterine lining for implantation.
Progesterone inhibits immune responses, decreases prostaglandins, and prevents the onset of uterine contractions.
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.
This early part of development lays the foundation for a healthy pregnancy and delivery.
If a possible complication in early pregnancy is suspected, your health care provider will use a combination of blood tests and ultrasound tests to make a clear diagnosis.
Development The earliest change that can be seen through a vaginal ultrasound at this time will be the “decidual reaction,” which is the thickening of the endometrium.