15 DPO: Implantation, hCG and When a Test Will Show
15 DPO means 15 days past ovulation. Here's what is likely happening in your body, and how likely a pregnancy test is to show a result.
What's happening at 15 DPO
At 15 DPO your period is late if you have a typical luteal phase. A home test is usually reliable now. If it's negative and your period still hasn't come, test again in a few days, and speak to a doctor if it stays negative and your period doesn't arrive.
| Days past ovulation | 15 |
|---|---|
| Implantation window | 6–12 DPO (most often 8–10) |
| Earliest a sensitive test may work | around 10 DPO |
| Period usually due | around 14 DPO |
| Test result at this stage | usually reliable |
Symptoms at 15 DPO
Symptoms in the days before a missed period, such as cramps, sore breasts or tiredness, are very similar to normal premenstrual symptoms caused by progesterone. They can't reliably tell you whether you are pregnant. A small amount of spotting can happen with implantation, but many people never notice it.
Find your dates
Use the implantation calculator to see your likely implantation dates, or the pregnancy test date calculator to see the best day to test.
Pregnancy Test Date Calculator: Find the earliest and the most reliable days to take a pregnancy test.
Open the calculatorThis article is general information, not medical advice. Talk to a doctor or midwife about your own pregnancy or fertility.