How long does it take for an IUI to work?

After an IUI procedure, the process does not work immediately and requires some time for results. If fertilization is successful, implantation of the embryo typically occurs about 6 to 10 days after IUI. During this period, the fertilized egg travels to the uterus and attaches to the uterine lining. Hormone levels, especially hCG, begin to rise only after implantation happens. Because of this, symptoms of pregnancy may not be noticeable right away. Doctors usually recommend waiting around 14 days after IUI before taking a pregnancy test. Testing too early can give a false negative result. Patience during this two-week wait is important for accurate results.