Dear Amandalxo,
I am so sorry to hear of the worrying time you are going through.
If no pregnancy can be seen in the uterus, or there is a small gestation sac in the uterus without a yolk sac or embryo, the pregnancy will be medically labelled as a Pregnancy of Unknown Location or PUL. It is important to understand that PUL is not a diagnosis; it is a label given until the final location of the pregnancy can be identified with certainty. In the event of a PUL, blood will be taken to measure serum progesterone and hCG and the hCG test repeated 48 hours later. The doctors would also want to repeat the scan.
The way that hcg testing works is by looking at a series of results to check that they are rising normally. Also, hCG tests are only part of the picture and the transvaginal ultrasound scan is important in determining whether the pregnancy is located in the right place.
If scans are inconclusive, doctors would carry out a series of blood tests to check hCG levels to see if the numbers are rising as expected. However, in isolation, hCG tests only provide a part of the picture - declining levels indicate that a pregnancy has ended and will be miscarried. It can also possibly indicate an ectopic pregnancy that is āself-resolvingā. Also hCG levels rising by less than 66% over 48 hours means it is likely (but not certain) that it is ectopic. If levels rise normally, they suggest the pregnancy is implanted in the uterus. You may see from this that hCG levels only indicate certain possibilities and are not in themselves a definitive guide. A positive identification of an implanted embryo on a scan is usually needed before a final diagnosis/certainty that the pregnancy has implanted in the uterus. I presume you have follow up bloods and scans.
Although I do not wish to alarm you, I would advise seeking urgent medical advice with any bleeding, abdominal pain, shoulder tip pain, bladder or bowel problems or you feel dizzy and unwell.
I am sorry that I cannot give you specific advice, but I hope things become clearer over the next coming days.
Sending much love,
Karen x
The Ectopic Pregnancy Trust
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