However, because it can take up to two weeks before hCG levels in the urine rise enough to be detected in a commercial pregnancy test, you'll get more accurate results if you wait at least that long before you take the test.
Most home tests are not very reliable until you actually miss a period, although a few like the FIRST RESPONSE® Early Result Pregnancy Test, claim to be able to detect the hCG hormone 6 days before a missed period.
Additionally, recreational use of hCG is considered somewhat dangerous and should not be taken for any lengthy period of time, as the negative effects on testosterone levels can have serious health consequences.
For example, the Oregon Board of Naturopathic Medicine (OBNM) has sent a notice to all licensed Naturopathic Physicians in the state of Oregon warning them against recommending the HCG diet to their patients.
Though studies of the hCG diet are ongoing, it is believed that the diet works because hCG affects the functioning of the hypothalamus by promoting consumption of excessive amounts of adipose deposits.