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Dr. Andrew Rynne
MD
Dr. Andrew Rynne

Family Physician

Exp 50 years

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When Is The Best Time To Do A Home Pregnancy Test?

When is the best time to take a Home Pregnancy test if I (26F) have irregular periods. By irregular I mean 27-35 days; and an average of 31 as I have calculated on the basis of the the last 24 months (January 2014-January 2016) and the months of December (2015) and January (2016) have been erratic 36 days and 41 days respectively. I haven t had my period in February and till now in March, 47 days and waiting; had protected sex on the 14th and 21st of February, took 2 HPT s on the 7th and 9th of March, both of which were negative. Did I test too early?
Tue, 29 Mar 2016
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General & Family Physician,  's  Response
Hi,
Thanks for posting in HCM.
I understand your concern.
A home pregnancy test detects the presence of the pregnancy hormone, human chorionic gonadotrophin (hCG), in your urine.
Your body starts to produce hCG when a fertilised egg implants in your uterus (womb). It can be detected in your urine from about six to 14 days after fertilisation.
You can take most home pregnancy tests three to four days before your missed period, but if you test too early, you're more likely to get a false negative.
If you have a negative result when you first test, it may be that the amount of hCG has not yet reached a level where it can be detected. Sometimes levels may still not be high enough to detect on the day your period is due. If your period is late, and the result is negative, wait for few more days and then test again.
The other ways to confirm pregnancy is by:
1. Detecting the hCG levels in blood sample.
2. Trans-vaginal Ultrasound scan (TVS).
3. Signs of pregnancy by clinical examination.
Hope the information provided would be helpful.
All the best.
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When Is The Best Time To Do A Home Pregnancy Test?

Hi, Thanks for posting in HCM. I understand your concern. A home pregnancy test detects the presence of the pregnancy hormone, human chorionic gonadotrophin (hCG), in your urine. Your body starts to produce hCG when a fertilised egg implants in your uterus (womb). It can be detected in your urine from about six to 14 days after fertilisation. You can take most home pregnancy tests three to four days before your missed period, but if you test too early, you re more likely to get a false negative. If you have a negative result when you first test, it may be that the amount of hCG has not yet reached a level where it can be detected. Sometimes levels may still not be high enough to detect on the day your period is due. If your period is late, and the result is negative, wait for few more days and then test again. The other ways to confirm pregnancy is by: 1. Detecting the hCG levels in blood sample. 2. Trans-vaginal Ultrasound scan (TVS). 3. Signs of pregnancy by clinical examination. Hope the information provided would be helpful. All the best.