What is the reason for a positive pregnancy test, negative blood test, and negative ultrasound?

Patient's question:

No

Doctor's answer:

It might be pregnancy. You need to go to the hospital for hCG blood and urine tests, as well as an ultrasound examination. If it's not pregnancy, you will need medication such as intramuscular progesterone. You should also strengthen your nutrition, avoid picky eating, and drink more bone soup. Avoid spicy, alcoholic, and other stimulating foods.