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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What will happen on the day of my vasectomy?

Vasectomy is the common name for male sterilisation. This page explains what you can expect on the day of your procedure at Marie Stopes UK.

Tips before you come in

Make sure you have organised a lift home as you won't be able to drive yourself as it might put pressure on your wound. You can expect to be at the centre/clinic for about one hour but the procedure itself only lasts 10-15 mins.

Please ensure you have something to eat and drink before coming to the centre to avoid feeling light-headed – food and drink will not affect the anaesthetic.

The no-scalpel Vasectomy procedure: what to expect

  • After arriving at the centre, you'll be met by one of our friendly receptionists who will check your details.
  • You may have had a telephone consultation prior to your appointment or you may be having a consultation on the day of your procedure. Either way, you'll then see one of our team who will also take your blood pressure.
  • If the results are satisfactory, a doctor will take your consent form.
  • You'll have a local anaesthetic injection into your scrotum area but away from your testes. 
  • An incision is made which is less than 1cm in size.
  • The vas deferens tubes are then heat sealed/cauterised. No scalpel or stitches are required. There is a possibility you may experience some mild discomfort during the procedure which takes 10-15 minutes.
  • Your wound will be dressed.
  • You'll walk into the recovery room where you'll rest for around 30 minutes. You'll be offered tea and biscuits and your blood pressure will be checked.
  • Once you feel well enough, your dressing has been checked and you have been assessed by a nurse or doctor, you'll be able to leave and go home.
  • Marie Stopes UK will give you two semen sample testing kits to take home with you. These are for later use, to check that your vasectomy has been successful.

You must use other forms of contraception until you've had the all-clear from Marie Stopes UK.

It's essential that you do not drive yourself home as driving can put pressure on the wound.

For information on how to care for yourself after your treatment, read our vasectomy aftercare advice

Need to talk about your options with Marie Stopes UK?

Our 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 0212 or email services@mariestopes.org.uk.