Written by Klarity Editorial Team
Published: Oct 14, 2025

Contraceptive failures happen—condoms break, pills are missed, and suddenly you’re facing a pregnancy scare that can trigger overwhelming anxiety. If you’ve recently experienced a contraceptive emergency and turned to emergency contraception like EllaOne, you’re likely wondering what happens next. This comprehensive guide will walk you through what to expect after taking emergency contraception, including how it affects your menstrual cycle, when to take a pregnancy test, and strategies to manage the emotional stress that often accompanies these situations.
EllaOne (ulipristal acetate) works primarily by delaying or inhibiting ovulation, which prevents an egg from being released for fertilization. Unlike Plan B, which is most effective within 72 hours, EllaOne can be effective for up to 120 hours (5 days) after unprotected sex, making it one of the most effective emergency contraceptive options available.
What many don’t realize is that EllaOne works differently from regular hormonal contraceptives. It’s a selective progesterone receptor modulator that temporarily blocks the action of progesterone, a hormone necessary for ovulation and implantation of a fertilized egg.
The effectiveness of emergency contraception depends largely on timing:
This is why understanding your fertility window through ovulation tracking becomes crucial when assessing your risk level after a contraceptive incident.
After taking EllaOne, many women experience temporary changes to their menstrual cycle. These changes are normal but can cause additional anxiety if unexpected:
At Klarity Health, our providers often remind patients that these temporary cycle changes don’t indicate any long-term fertility issues and typically resolve within 1-2 cycles.
One of the most anxiety-inducing aspects after taking emergency contraception is distinguishing between normal side effects and potential pregnancy symptoms. Common symptoms that could be either side effects or early pregnancy signs include:
| Symptom | Potential Cause ||———|——————|| Nausea | Common side effect of EllaOne or early pregnancy sign || Breast tenderness | Can be hormonal side effect or pregnancy symptom || Spotting | Could be breakthrough bleeding from EllaOne or implantation bleeding || Fatigue | May result from hormonal changes or pregnancy || Period delay | Expected after EllaOne, but also a pregnancy indicator |
Patience is key when it comes to pregnancy testing after using emergency contraception. Testing too early can lead to false negatives or unnecessary anxiety:
Not all pregnancy tests are created equal, especially when you’ve recently taken emergency contraception:
At Klarity Health, our providers can help determine the best testing approach based on your specific situation and provide support regardless of the outcome.
The stress of a pregnancy scare can be overwhelming and impact your mental wellbeing. Consider these strategies to manage contraceptive anxiety:
If anxiety becomes unmanageable, don’t hesitate to reach out for help. Signs you might benefit from professional support include:
Klarity Health offers convenient virtual appointments with healthcare providers who can address both your physical and emotional concerns, providing reassurance and personalized guidance during this stressful time.
A contraceptive emergency can be a valuable opportunity to reassess your birth control method. Consider factors like:
If your current contraceptive method led to anxiety or failure, it might be time to explore alternatives:
Klarity Health providers can help you navigate these choices with transparent pricing and flexible appointment options, whether you have insurance or prefer to pay directly for care.
A pregnancy scare following contraceptive failure can be incredibly stressful, but understanding how emergency contraception affects your body and knowing what to expect can help ease anxiety during the waiting period. Remember that temporary cycle changes are normal after taking EllaOne, and following proper pregnancy testing timelines will provide the most accurate results.
Whether you need guidance on interpreting your symptoms, support for contraceptive anxiety, or help planning more reliable contraception for the future, professional healthcare support is available. Klarity Health’s virtual appointments allow you to connect with providers who understand both the physical and emotional aspects of contraceptive emergencies—providing the information and reassurance you need during this challenging time.
Don’t let contraceptive anxiety control your life. Reach out for support, follow a testing timeline based on facts rather than fear, and use this experience to make informed decisions about your reproductive health moving forward.
Can I take EllaOne if I’m already ovulating?While EllaOne is most effective before ovulation, it may still provide some protection during ovulation by affecting the uterine lining. However, effectiveness is reduced.
Will emergency contraception affect my fertility long-term?No, emergency contraception like EllaOne has no long-term effects on fertility. Once it clears your system, your normal fertility returns.
Why is my period late after taking emergency contraception?Emergency contraception works by delaying ovulation, which can subsequently delay your period by up to 7 days. This is a normal and temporary effect.
Can I use emergency contraception multiple times in one cycle?While technically possible, emergency contraception is not designed for regular use and becomes less effective within the same cycle. Consult with a healthcare provider about more reliable ongoing contraception.
Does emergency contraception protect against STIs?No, emergency contraception only helps prevent pregnancy. It provides no protection against sexually transmitted infections.
Find the right provider for your needs — select your state to find expert care near you.