HCG

FDA Approved

Human Chorionic Gonadotropin

Category
Sexual Health
Aliases
hCG, Pregnyl, Novarel
Administration
Subcutaneous injection, Intramuscular injection

Timing

A general projection of what people report noticing over time, based on the known mechanism and reported use patterns. It is not a guarantee and individual experience varies considerably.

  1. 1

    1–2 Weeks

    In fertility treatment, ovulation-triggering effects occur within 24-36 hours of a single dose; for ongoing testosterone-support use, users may notice early improvement in testicular fullness within the first couple of weeks.

  2. 2

    3–4 Weeks

    Continued use in testosterone-support protocols is generally associated with maintained testicular size and function through this window.

  3. 3

    5–7 Weeks

    Lab-confirmed testosterone and sperm parameter changes are typically evaluated around this stage in fertility-focused use.

  4. 4

    8–10 Weeks

    Effects on testicular function are generally described as stable and maintained with continued, consistent dosing.

  5. 5

    11–15 Weeks

    Long-term users typically continue at a steady, physician-directed maintenance dose through this period.

  6. 6

    16–20 Weeks

    Available evidence supports continued stable testicular function with ongoing, consistent use at this duration.

  7. 7

    21–24 Weeks

    By this stage, most users are evaluating outcomes through lab work in consultation with a physician rather than day-to-day sensation.

⚠️ Research context only. This is not medical advice and results are not guaranteed.