13 DPO Faint Line: What Does It Mean?
Still seeing a faint line at 13 DPO? Here's what could be happening and your next steps.
13 DPO expectations
At 13 DPO, you're one day before most women expect their period. The majority of pregnant women have a clear, unmistakable positive by now. A faint line at this point is less common but can happen.
Possible reasons for a faint 13 DPO line
Very late implantation (day 11-12), diluted urine, or a less sensitive test brand can all cause lighter lines. Also consider: is the line getting darker from previous days? Progression matters more than darkness on any single day.
When a faint line at 13 DPO is concerning
If your lines have been faint since 10-11 DPO and aren't getting darker, it could indicate low hCG. This doesn't always mean a problem, but it's worth mentioning to your doctor if the pattern continues.
Best next step
Test again tomorrow morning (14 DPO) with first morning urine. If your period doesn't come and tests stay faint, consider a blood hCG test for accurate levels.
Ready to scan your pregnancy test?
Download the #1 AI Pregnancy Test Checker app and get instant, accurate results.
