Gestation Calculator

This calculator has been designed to give you an idea of the treatment options available to you*. If you decide to have an abortion with Marie Stopes UK, one of our nurses will give a more approximate gestation date during your appointment by way of a scan.
*Please note that this online calculator will only give you an estimated gestation based on the details you have provided.

Please select the first day of your last menstrual period.



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Call us now on 0345 300 8090 or email services@mariestopes.org.uk

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Will a surgical abortion hurt?

At Marie Stopes we make every effort to ensure you are comfortable before, during and after your procedure.

General anaesthetic

If you're having a general anaesthetic, you'll feel no pain during the surgical part of the procedure as you'll be completely asleep. If you're more than 14 weeks pregnant, you may be given some medication to help dilate the cervix and this can cause some cramping pain. 


If you're having sedation, you can feel some discomfort and pain in the lower abdomen as the uterus (womb) contracts at the end of the procedure. If you're having sedation, a painkiller will also be given.

No anaesthetic

If you're having no anaesthetic, it's likely you'll experience pain, but will not have the side effects of the drugs used for sedation. If you're not having sedation or a general anaesthetic, you can take 400mg of Ibuprofen and/or 1 gram of Paracetamol an hour before your appointment. Please inform the nurse on arrival of any medication you have taken. Please do not take Aspirin.

Pain after surgical abortion

It's not possible to say how much pain you'll feel after the procedure. At some time in the first ten days after your treatment, you may experience cramping-type pain in your abdomen as the uterus contracts and returns to its normal, non-pregnant size. These cramps can be constant or intermittent. It's not unusual to continue to get cramping on and off in the first 2 weeks after your surgical treatment.

If you're feeling uncomfortable, taking Paracetamol and/or Ibuprofen can help. If you're concerned about the level of pain you're experiencing, or if your pain is not controlled by taking painkillers, please call our 24-hour aftercare line on 0345 122 1441, attend an A&E department, or see your GP.

Need to talk about your options?

Our caring, specialist staff are on hand 24/7 to offer expert advice and support – from your initial consultation to treatment aftercare.

Call us now on 0345 300 8090 or email services@mariestopes.org.uk

Stories that matter 

Read our stories that matter page where you will find personal stories sent by women who have had an abortion.