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IVF Beta Statistics Calculator

Access statistical benchmarks for IVF beta-hCG levels. Compare your results against successful pregnancy data for specific days post-transfer (e.g., 9dp5dt).

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About

In the context of In Vitro Fertilization (IVF), the "Beta" refers to the blood test measuring beta-hCG. Unlike natural pregnancies where dates are fuzzy, IVF patients know the exact age of the embryo. This allows for precise statistical comparison. Patients often ask, "Is 85 a good number for 9dp5dt?" This tool answers that by aggregating historical data from successful singleton pregnancies.

The database incorporated here provides the Median (50th percentile), as well as low and high thresholds for viable pregnancies. It is important to note that these numbers are averages; a value below the median does not imply failure, but rather that the embryo may have implanted slightly later.

ivf-success beta-stats betabase 9dp5dt infertility

Formulas

This tool does not use a generative formula but performs a direct lookup against a statistical dataset of reported viable pregnancies.

Result ∈ Ssuccess if hCG ≥ LowestRecorded

The "Target Goal" displayed is generally defined as the 25th percentile of successful pregnancies, providing a realistic benchmark that filters out biochemical pregnancies.

Reference Data

Day (5-Day Transfer)Lowest SuccessMedian SuccessTarget Goal
7dp5dt528> 10
8dp5dt1048> 25
9dp5dt1682> 50
10dp5dt28136> 80
11dp5dt45218> 120
12dp5dt72344> 180
13dp5dt110534> 280
14dp5dt170820> 400

Frequently Asked Questions

A chemical pregnancy is a very early miscarriage that occurs shortly after implantation. hCG levels rise enough to trigger a positive test (often < 100 mIU/mL) but fail to double appropriately and eventually decline.
By 14 days post transfer (equivalent to 19 DPO), hCG production is ramping up exponentially. A median value here is over 800. Many clinics test earlier (9 or 10 days) to get an early indication, where numbers are much lower (50-100).
Yes, but you must adjust the day. 9dp5dt (9 days past 5-day transfer) is biologically equivalent to 11dp3dt (11 days past 3-day transfer). This tool handles that conversion automatically.