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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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How should I prepare for my abortion?

Here are some things you should think about before you come for your abortion appointment.
  • Should I eat or drink anything beforehand? We recommend that you do not eat before your abortion. You can drink some water if your surgery is planned for the afternoon. You should not chew gum before your abortion. 

  • I've got a cough, cold or sore throat. It's advisable to rebook your appointment for when you're feeling better. Treatment at Marie Stopes UK is always subject to assessment by a doctor on the day, so you may be refused treatment if you're assessed as not well enough.

  • I'm bleeding. Light spotting or bleeding in the first twelve weeks of pregnancy can be normal as the pregnancy starts to embed into the womb lining. If you have light bleeding, we recommend you still attend your appointment. We'll perform an ultrasound scan before you have treatment to ensure your pregnancy is inside the womb and to confirm the number of weeks pregnant you are. If the bleeding is heavier than your normal period and/or you have significant pain, you should attend an A&E department, an Early Pregnancy Unit, or see your GP urgently. 

  • I'm in pain. Mild, crampy abdominal pain can be normal in early pregnancy as the uterus (womb) starts to grow within the pelvis. If you have mild cramping pain you should still attend your appointment. However, if the pain is persistent and you need to take painkillers, you should see a doctor for a medical assessment. 

  • I'm concerned I might have an ectopic pregnancy. Ectopic pregnancy is difficult to diagnose and often the symptoms can be confusing. If you're experiencing significant abdominal pain and/or bleeding you should see a doctor. Minor abdominal cramps and light bleeding can be normal in early pregnancy. We perform an ultrasound scan on the day of your appointment to confirm your pregnancy is inside the uterus. Read our advice on ectopic pregnancy

  • I'm not sure I want to have an abortion. At Marie Stopes, we will not proceed with abortion treatment unless you are certain of your decision. We have counsellors that you can speak to on the telephone ahead of your appointment. Find out more about our couselling services.  

Stories that matter 

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