What does it mean if I had empty sac on week 7 8 but my HCG levels continue to grow from one another rising 22000 level?

If you had an empty sac on weeks 7 and 8, but your HCG levels continued to grow, reaching 22,000, this could indicate a molar pregnancy. A molar pregnancy occurs when fertilized eggs develop abnormally in the uterus, leading to the formation of grape-like clusters instead of a developing fetus. Molar pregnancies can cause high levels of HCG production despite the absence of a viable pregnancy or significant development. If your doctor suspects a molar pregnancy based on these results, further evaluation, monitoring, and treatment may be necessary.