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  • Type: Blood

Pregnancy Blood Test (Beta hCG)

£75.00 GBP

No appointment needed

Laboratory test

Results by e-mail

Treatment available if needed


Product description

This pregnancy blood test is an accurate quantitative pregnancy blood test (beta-hCG).

Why do this test?

A blood pregnancy test is much more accurate than a urine test. It becomes positive 7-12 days after falling pregnant (conception) and is 99% reliable. A number of 5.8 IU/L or more is positive for pregnancy and gets higher during the course of the pregnancy reaching a maximum around 9-12 weeks before getting less for the rest of the pregnancy (see below). For this reason you can also use a pregnancy blood test to see how a pregnancy is progressing. It is therefore sometimes used to check for miscarriages.

A urine pregnancy test, on the other hand, is usually done when you have missed a period and is 97% accurate. That is why women sometimes do more than one test just to make sure. It usually becomes positive 2 weeks after getting pregnant (conception).

Click here to find out more in our ultimate guide to pregnancy tests.


Results take 1 working day * and will be e-mailed to you with a doctor's explanation. 

* Indicative timings only. Actual result may be earlier or slightly later.


Beta-hCG Levels and Pregnancy:

Levels of beta-hCG less than 5.8 indicate a negative pregnancy test.

Levels of beta-hCG more than 5.8 indicate a positive pregnancy test.

 Beta-hCG (IU/L) Pregnancy (Weeks)
5.8 - 71.2 3
9.5 - 750 4
217 - 7138 5
158 - 31795 6
3697 - 163563 7
32065 - 149571 8
63803 - 151410 9
46509 - 186977 10
27832 - 210612 12
13950 - 62530 14
12039 - 70971 15
9040 - 56451 16
8175 - 55868 17
8099 - 58176 18



Option 1: Calculate by Last Menstrual Period

Enter the first day of your last menstrual period:

Option 2: Calculate by Gestational Age from Ultrasound

Enter the gestational age (in weeks and days) as given by the ultrasound:

Enter the date of the ultrasound scan:



How does it work?

1. Purchase test online with full name and date of birth.

2. Attend Patient Reception for your STI test at a walk-in laboratory in London.

3. You will recieve a text message notification when your results are ready. They will be sent to you discreetly by email.

4. In the event of a positive test result, we provide STI treatment if needed.


How tests are done?

Blood tests are taken by a phlebotomist
Urine & Swabs: you will be shown to a cubicle to collect these yourself

Date of Birth Requirement

All laboratories need information regarding the client to identify their individual sample.

Without these details, tests cannot be processed.

The minimum requirement is the full name and date of birth.

You can enter these details securely in 'Order Special Instructions' at the CART stage of the order process. Alternatively, you can email these to us at:


The Doctors Laboratory

76 Wimpole Street



See map at bottom of this page


Treatment for postive tests is available by payment of a £25 prescription fee.

The medication is then delivered to you from our pharmacy partner e-Medicina. Typical costs for one antibiotic is approximately £10.

View full details

Pregnancy Blood Test (Beta hCG)

£75.00 GBP


Patient Reception

The Doctors Laboratory

76 Wimpole Street



Mon - Fri: 7am - 7pm
Saturday: 7am - 1pm
Sunday & Public Holidays: Closed


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