Emergency contraception—commonly known as the morning after pill—is a safe, effective way to prevent pregnancy after unprotected sex or contraceptive failure. However, many people worry about how it might make them feel afterwards.

At Luxtons Pharmacy, we regularly support women seeking emergency contraception and answer questions about morning after pill side effects. In this blog, we’ll explain what side effects are common, how long they tend to last, when to seek advice, and what kind of support you can expect from your local pharmacy.

What Is the Morning After Pill?

The morning after pill is a type of emergency contraception that works best when taken soon after unprotected sex. It helps prevent pregnancy by either delaying ovulation or preventing a fertilised egg from implanting in the womb lining.

There are two types available in the UK:

  • –> Levonorgestrel (e.g. Levonelle) – effective up to 72 hours (3 days) after sex
  • –> Ulipristal acetate (EllaOne) – effective up to 120 hours (5 days) after sex

Both options work better the sooner they are taken. Neither should be used as a regular method of contraception, but they offer vital peace of mind when other methods fail or aren’t used.

morning after pill side effects

What Are the Common Side Effects?

Most people experience little to no side effects, but mild symptoms are fairly common. These are typically short-lived and not dangerous.

  • –> Nausea or vomiting – feeling sick is a common side effect, especially within the first few hours
  • –> Headache – a dull headache may follow soon after taking the tablet
  • –> Tiredness or dizziness – some people feel fatigued or lightheaded for a day or two
  • –> Breast tenderness – similar to PMS symptoms
  • –> Abdominal pain or cramping – lower tummy pain can occur for a short time
  • –> Spotting or light bleeding – this can happen between taking the pill and your next period

These effects usually pass within 24–48 hours.

Will It Affect My Next Period?

Yes, your next period may be different than usual. This is completely normal and nothing to worry about.

You may find your period is:

  • –> Earlier or later than expected
  • –> Heavier or lighter than usual
  • –> More crampy or irregular than normal

This is due to the way the hormone in the pill temporarily changes your cycle. If your period is more than seven days late, is very light, or doesn’t arrive at all, you should take a pregnancy test.

Can It Cause a Missed Period?

It can delay your period slightly, but a missed period isn’t typical. If your period hasn’t started a week after it was due—or if you have unusual symptoms like ongoing abdominal pain or breast changes—take a pregnancy test as soon as possible.

When Should I Be Concerned?

In most cases, side effects are mild. However, there are some situations where you should get medical advice:

  • –> You vomit within 2–3 hours of taking the pill (you may need another dose)
  • –> You experience severe abdominal pain (this could be a sign of ectopic pregnancy)
  • –> Your period is more than 7 days late
  • –> You feel unwell beyond 48 hours, or your symptoms worsen
  • –> You have a known allergy to any of the pill’s ingredients

Your pharmacist can assess whether you need further care or if your symptoms are normal.

Can I Take It More Than Once?

Yes—you can take the morning after pill more than once in a cycle, though it’s not ideal. Taking it repeatedly can cause more frequent side effects and may make your cycle unpredictable.

If you find yourself needing emergency contraception often, it may be time to explore more reliable, long-term options. At Luxtons Pharmacy, we can discuss alternatives like:

  • –> The contraceptive pill
  • –> The patch or injection
  • –> The copper IUD
  • –> Condoms or hormone-free methods

Our team offers confidential advice and support tailored to your needs.

morning after pill side effects

Get Support at Luxtons Pharmacy

At Luxtons Pharmacy in Exeter, we offer emergency contraception services in a calm, private setting. You don’t need an appointment, and you don’t need to feel nervous—our team is here to help.

We provide:

  • –> Access to both EllaOne and Levonelle
  • –> A short, discreet consultation to check your suitability
  • –> Advice on side effects, what to expect, and next steps
  • –> Signposting to other contraception options if you need them

Your visit is always confidential. Whether you’re looking for reassurance, clarity, or just fast access to treatment, we’ve got you covered.

If you’re worried about symptoms or unsure whether the morning after pill is right for you, contact us and speak to our experienced team at Luxtons Pharmacy. We’re here to answer your questions and help you make informed decisions—no judgement, just expert care.

This blog was written on behalf of Luxtons Pharmacy by Pharmacy Mentor.