The morning after can feel like a countdown, because in some ways it is. If you’re asking, “I had unprotected sex last night – what should I do?” the most useful answer is simple: take a breath, then act today. You may have options for preventing pregnancy, reducing certain STI risks, and making a clear plan for testing.
I Had Unprotected Sex Last Night: Start With Emergency Contraception
If pregnancy is possible and you do not want to be pregnant, emergency contraception is most effective the sooner you use it. Do not wait to see whether you develop symptoms. Pregnancy symptoms cannot tell you anything the next day.
There are three main emergency contraception options. Levonorgestrel emergency contraception, often called the morning-after pill, is available without a prescription and works best when taken as soon as possible, ideally within 72 hours. It may be less effective at higher body weights, so a clinician or pharmacist can help you choose the right option. If you’re deciding between the two pills, here’s a closer look at the differences between Ella and Plan B.
Ella, which contains ulipristal acetate, is a prescription emergency contraceptive that can be taken up to five days after unprotected sex. It is often a strong option when more time has passed or when levonorgestrel may be less effective. It is not the same medication as a standard over-the-counter morning-after pill. You can also read more about when you should take Ella.
A copper IUD can also be placed within five days of unprotected sex and is the most effective form of emergency contraception. It requires an in-person appointment, but it can provide ongoing birth control after placement.
One detail that gets missed: if you take Ella, wait five days before starting or restarting hormonal birth control. Use condoms or avoid sex during that time, then continue using backup protection for the next seven days after restarting your hormonal method. Hormonal birth control can make Ella less effective if used too soon. Here’s more information about restarting birth control after Ella vs. Plan B.
Emergency contraception does not end an established pregnancy, and it does not protect you from sexually transmitted infections. Period-delay medication is also not emergency contraception and should not be used as a substitute. If you’re confused about the differences, read more about birth control, emergency contraception, and abortion myths.
Think About STI Exposure Too
Unprotected sex can involve more than pregnancy risk. If you do not know your partner’s STI status, or there was a condom break, testing may be a smart next step. The right timing depends on the infection and the type of test, so one test immediately after sex may not give you a final answer. If a condom broke and you’re trying to figure out what to do next, this step-by-step guide after a condom breaks may help.
For infections such as chlamydia and gonorrhea, testing is often most useful about one to two weeks after exposure. Blood tests for infections such as HIV and syphilis may need to be repeated later because they can take longer to show a reliable result. A licensed clinician can create a testing schedule based on the exposure, your symptoms, and your health history.
If there is a possible HIV exposure, ask about HIV post-exposure prophylaxis, known as PEP, right away. PEP must be started within 72 hours, and earlier is better. This is urgent care territory, not a wait-and-see situation.
If the sex was nonconsensual or you felt pressured, you deserve care without judgment. An emergency department, urgent care center, or sexual assault forensic program can help with time-sensitive treatment, evidence collection if you want it, and support.
Make a Pregnancy Testing Plan
Do not take a pregnancy test the day after sex and expect a useful answer. It is too early. Take a home pregnancy test about three weeks after the unprotected sex, or sooner if your period is late. If the first test is negative but your period still has not arrived, repeat it in a few days.
Your cycle may shift after emergency contraception. Spotting, nausea, breast tenderness, or a period that comes earlier or later than expected can happen. Those changes do not reliably tell you whether the medication worked. If you took Ella and your period is late, here’s what to know about pregnancy after taking Ella.
Get urgent medical attention for severe or worsening lower abdominal pain, fainting, shoulder pain, or heavy bleeding, especially if you have a positive pregnancy test. Those symptoms can require prompt evaluation.
Do Not Forget Your Ongoing Birth Control Plan
One night should not force you into an ongoing method you do not want. But if this scare exposed a gap in your protection, it is worth choosing a plan that fits your real life. That might mean condoms, a pill, an IUD, an implant, or another method that feels manageable.
If you are in perimenopause or using hormone therapy, remember that HRT is not birth control. Pregnancy is still possible until menopause is confirmed, even when periods are irregular.
MyBodyMyRx offers clinician-reviewed emergency contraception options, including Ella when appropriate, with prescriptions sent to the local pharmacy you choose. No subscriptions. No pharmacy lock-in. Just clear next steps when timing matters.
If you need emergency contraception now, you can start an emergency contraception visit now. If you’re not sure what you need and would rather talk through your situation first, Talk It Out is another option.
You do not need to panic, and you do not need to figure this out alone. The clock matters, but you still have choices today.
