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.



We are here to support you 24 hours a day, 7 days a week

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

0345 300 8090

You are here

How confidential is your STI testing service?

At Marie Stopes United Kingdom, we understand how important confidentiality and privacy can be for our clients, who may not want their partner, family or GP to know that they have a sexually transmitted infection (STI).

Rest assured that you can access STI testing services without anyone knowing including your family, friends and doctor.

Anything you tell our staff will be kept 100% confidential. Any treatment you may receive will not be added to your medical records. 

Although some people do not wish to discuss STIs with their partner, if you have an STI your partner almost certainly will too. They must also get tested to make sure, and seek treatment if necessary. Your partner can also be tested at Marie Stopes UK.

Many people are worried or embarrassed about talking to their partner about a sexually transmitted infection, but as some infections are very common either of you could have been infected before you met. If your partner does not get tested and seek treatment, you may become infected again.

Once a person contacts Marie Stopes UK their data is stored securely. As a provider of NHS services, Marie Stopes UK has to meet stringent data protection rules.

When you book treatment you can choose how you are contacted, so you can protect your privacy over email, text or letter. Any letters sent out by Marie Stopes UK will be discreet.