Two Week Wait Calculator
Enter your embryo transfer date to see your earliest test day, your likely beta hCG day, and what is happening on each day past transfer.
Earliest home test
Monday, August 17, 2026
Unreliable this early
Reliable home test
Thursday, August 20, 2026
10 days past transfer
Typical beta hCG
Aug 19 – Aug 21, 2026
Your clinic's date takes priority
This is an estimate for information only — only about 1 in 20 babies arrive on their due date. Always confirm dates with your midwife or doctor.
Day by day after a day-5 transfer
Timings are typical patterns, not guarantees — implantation varies from person to person.
| Day | Date | Gestational age | What is typically happening |
|---|---|---|---|
| 0DP5DT | Aug 10 | 2w 5d | Transfer day. The blastocyst is placed in the uterus. |
| 1DP5DT | Aug 11 | 2w 6d | The blastocyst begins to hatch out of its shell. |
| 2DP5DT | Aug 12 | 3w 0d | Hatching continues and the embryo starts to attach to the uterine lining. |
| 3DP5DT | Aug 13 | 3w 1d | Implantation begins. |
| 4DP5DT | Aug 14 | 3w 2d | Implantation continues as the embryo burrows deeper. |
| 5DP5DT | Aug 15 | 3w 3d | Implantation is usually complete; hCG starts entering the bloodstream. |
| 6DP5DT | Aug 16 | 3w 4d | hCG is rising but is still too low for most home tests. |
| 7DP5DT | Aug 17 | 3w 5d | A very sensitive home test may pick something up. Results here are unreliable. |
| 8DP5DT | Aug 18 | 3w 6d | hCG is more detectable; faint lines are common but not conclusive. |
| 9DP5DT | Aug 19 | 4w 0d | Many clinics run the first beta hCG around now. |
| 10DP5DT | Aug 20 | 4w 1d | A home test is usually reliable by this point. |
| 11DP5DT | Aug 21 | 4w 2d | Typical latest day for a first beta hCG. |
| 12DP5DT | Aug 22 | 4w 3d | If the first beta was positive, a repeat is usually 48 hours later. |
Why the IVF wait is shorter than two weeks
In a natural cycle the two-week wait runs from ovulation to a missed period. After IVF the embryo is already three, five or six days old when it is transferred, so the clock is already part-way through. That is why a day-5 transfer is usually tested around nine days later rather than fourteen — and why a day-3 transfer waits about two days longer than a day-5 for the same result.
Reading the DPT vocabulary
Clinics and forums count in days past transfer: 7DP5DT is seven days after a day-5 transfer. Adding the embryo age gives the equivalent days past ovulation — 7DP5DT is roughly 12 days past ovulation — which is how the IVF timeline lines up with a natural cycle.
About early testing
Testing early is common and understandable, but before about 9DP5DT a negative means very little and a positive may still be trigger shot. If you do test early, plan in advance what you will do with an ambiguous result — that is usually harder than the test itself.
After a positive beta
Your clinic will normally repeat the beta 48 hours later. You can compare the two values with the hCG doubling calculator, and see your estimated due date with the IVF due date calculator.
More IVF calculators
- IVF due date calculatorDay-3, day-5 and day-6 transfers, fresh or frozen.
- hCG doubling calculatorCompare two beta results and see the doubling time.
- IVF gestational age calculatorTurn a transfer date into exact weeks and days.
- FET cycle calculatorPlan a frozen transfer cycle backwards or forwards.