The short explanation
A home pregnancy test is most reliable about three weeks after the unprotected sex, or from the day your period is due if your cycle is regular. Testing earlier can give a false negative, because the pregnancy hormone may not yet be high enough to detect. If you have taken emergency contraception, it is still recommended to test about three weeks later, or if your next period is more than a week late or unusually light. Using the first urine of the morning gives the most accurate result.
What depends on your situation
The parts of this that change from woman to woman. Uncertainty is stated, not hidden.
- If you test early and it is negative, repeat it a few days later if your period has not come.
- Emergency contraception works best when used as soon as possible after the condom breaks.
- Consider STI testing about two weeks after the sex if your partner's status is unknown.
What this answer cannot determine
The boundary of online education. These need a clinician who can see you.
- This answer cannot tell whether you are pregnant. A test at the right time can.
Questions for your clinician
Take these with you. You can add any of them to an appointment card.
- Do I need emergency contraception?
- When should I do a pregnancy test?
- Should I also be tested for infections?
- Which regular method would suit me?
When to seek help
Clinician-approved guidance for this topic. When in doubt, being seen is never the wrong choice.
Get help the same day
- Get emergency contraception the same day if the condom broke recently.
Book an appointment soon
- See a doctor within a few days if the pregnancy test is positive.
Raise it at a routine appointment
- Do a pregnancy test about three weeks after the sex, or if your period is late.
Sources
The evidence this explanation is built on.
- Emergency contraception NHS
- Condoms NHS
Who wrote and reviewed this
Every AskHer answer names its author. A clinically reviewed answer also names the clinician who signed it off — if no clinician is named below, it has not been clinically reviewed.
- Author
- AskHer Editorial (AI-assisted draft) AskHer's editorial team — not an individual clinician Works in English, தமிழ், हिन्दी
- Clinical reviewer
- Nobody yet No clinician has signed this answer off, and no person on the editorial team has read it yet. That is what the “Written with AI assistance” label means. It is queued for an editor to read, and then for a clinician who works in this area. The sources it was drafted against are listed above.
- Review status
- Written with AI assistance — not yet reviewed by a person
- Last reviewed
- Not yet reviewed by a person
- Version
- 1
Correction history
Substantive changes are listed, not quietly edited away.
No corrections have been made since this answer was first published.
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