Preparing for dating ultrasound
h CG can be detected through two different types of blood tests, or through a urine test.
A quantitative blood test measures the exact amount of h CG in the blood, and a qualitative h CG blood test simply detects the presence of h CG.
During intercourse, several hundred million sperm are released in the vagina.
Sperm will travel through the cervix and into the fallopian tubes.
Progesterone inhibits immune responses, decreases prostaglandins, and prevents the onset of uterine contractions.
The corpus luteum will produce progesterone for about 12-16 days (the luteal phase of your cycle.) When the egg is fertilized, the corpus luteum will continue to produce progesterone for the developing pregnancy until the placenta takes over around week 10.
Progesterone is the hormone that helps maintain the pregnancy until birth.
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.