When should I do a pregnancy test?
If you do a pregnancy test on the first day of your missed period, and it’s positive, it’s probably about two weeks since you conceived.
A negative result is less reliable. If you still think you’re pregnant after a negative result, wait a week and try again or speak to your doctor.
You can do a test from the first day of your missed period. You will know that you have missed a period if your periods are regular. If you have an irregular period cycle and do not know when your next period is due, you can do a pregnancy test three weeks (21 days) after you had unprotected sex.
If you can’t wait until your first missed period, very sensitive tests are now available that can be used even before you miss a period. Check the label on the box.
Tip: Some clinics, GPs and family planning clinics offer pregnancy tests for free. Find your nearest family planning clinic.
How do pregnancy tests work?
The test checks for the presence of the pregnancy hormone, human chorionic gonadotrophin (HCG) in your urine. Two weeks after you get pregnant, your body produces enough HCG to be detected by the test.
How many weeks pregnant am I?
Your doctor or midwife will count your pregnancy from the first day of your last menstrual period (LMP). This means that by the time you miss a period, you are calculated to be four weeks pregnant.
Although this may seem confusing at first, you will soon become accustomed to the weekly pregnancy calender as you progress through the key milestones of your pregnancy.
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