Emergency contraception side effects and period changes
Headache, nausea, cramps and a temporary change in the next period can occur. Know when to test or seek help.
DIRECT ANSWER
An online consultation lets an EU-licensed doctor review your case and, if appropriate, issue a prescription that is valid across the EU.
Less than 4 hours on average
Prescription issued in less than 4 hours on average if approved.
EU-licensed doctors
Every case is reviewed by a licensed clinician.
Valid across the EU
Approved prescriptions can be used at any EU pharmacy.
In this article
HOW IT WORKS
From consultation to collection
- 1
Step 1
Consultation
Answer a secure medical questionnaire online.
- 2
Step 2
Doctor reviews
An EU-licensed doctor personally assesses your case.
- 3
Step 3
Prescription in less than 4 hours on average
If approved, your prescription is issued in less than 4 hours on average.
- 4
Step 4
Collect at any EU pharmacy
Use an approved prescription at a pharmacy anywhere in the EU.
Most effects after an emergency contraceptive pill are short-lived. They can overlap with premenstrual symptoms and anxiety, so it helps to know what is expected without assuming every change means pregnancy.
Common effects after an emergency pill
Nausea, headache, lower abdominal discomfort, tiredness, dizziness and period-like cramps can occur. The next bleed may come a little earlier or later and may be lighter or heavier than usual. Follow the leaflet if you vomit soon after taking the tablet, because another dose may be needed.
What an altered period can and cannot tell you
Bleeding after the pill is not a reliable pregnancy test, and a delayed period does not prove pregnancy. Cycle timing, stress and the emergency method can all shift bleeding. Use a pregnancy test at the interval advised by the pharmacist, clinician or leaflet, and test sooner if the period is clearly late or unusually light with pregnancy symptoms.
After copper-IUD insertion
Cramping and spotting can follow insertion, and periods may become heavier or more painful, particularly at first. Severe worsening pain, fever, offensive discharge, very heavy bleeding or inability to feel the threads when you were taught to check them warrants clinical advice.
When to seek help
Emergency contraception is time-sensitive. Seek a pharmacy, sexual-health service or clinician as soon as possible rather than waiting for symptoms. Urgent in-person care is needed for severe one-sided or lower abdominal pain, collapse, very heavy bleeding or a severe allergic reaction. Emergency contraception does not treat an established pregnancy and does not protect against sexually transmitted infections.
What to prepare for a medical review
Be ready to share when each episode of unprotected sex happened, the first day of the last period, usual cycle length, the contraception that failed, current medicines and supplements, breastfeeding, and whether a period was already late. These details help a professional compare oral options with a copper IUD and explain when regular contraception can be restarted.
A calm next step
Write down the date of the unprotected sex, treatment and expected period. That simple record makes follow-up clearer. If symptoms are severe or the pregnancy-test timing is uncertain, ask rather than guessing.
Clinical sources used: World Health Organization emergency-contraception fact sheet and European Medicines Agency product information for ulipristal acetate.