I have received questions like " When can I test for pregnancy?", "How soon can I start to test?" and I made a search on net and found some interesting articles which I like to share with you.
In order to answer that question, one have to understand, how does the pregnancy test works?
A pregnancy test measures the amount of hCG(Human Chorionnic Gonadotropin) in your body.
After conception, the fertilised egg need to take about 3-7 days to move from the fallopian tubes to be implant in the uterus. And only then the level of hCG will start to produce and increase.
At 10 dpo (days past ovulation), the average woman has about an hCG measurement of around 25 mIU.
At 12 dpo, it doubles to 50 mIU and then doubles again to 100 mIU at around 2 weeks past ovulation.
There are different sensitivity level of pregnancy tests in the market. So for example, if you are using a test sensitive to 100 mIU, it will show a negative result if your hCG level is only 75 mIU.
However that said, every body works differently. Some may detect early pregnancy test results (<12dpo) and some later pregnancy test results.
In general, you should know that implantation will take place around 6 to 12 days after ovulation. During this point, some may experience implantation dip in your BBTemperature. Others may experience slightly spotting on the day of implantation, while others may not even experience it.
So only after the fertilised egg has been implanted, the earliest you can take a pregnancy test maybe after 12 days.
The Downside to Sensitive Early Pregnancy Tests
Many may think, the lower sensitivity I get for the pregnancy tests, isnt it even better, since I can detect if I'm pregnant earlier compared to a higher sensitivity test?
Quoted :
"Unfortunately, 25% of all pregnancies end in miscarriage and many of these being very early pregnancies. If you use a very sensitive pregnancy test, where you test before the day your period is due, you could catch an early pregnancy and end up going on to have your period anyway due to a very early miscarriage. If you had waited to test until your period was due, you wouldn’t be aware that you had a miscarriage. Some women will find it very hard to deal with this sort of emotional roller coaster."