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Old Jan 29th, 2018, 19:41 PM   21
Trying to conceive (TTC)
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Join Date: Dec 2012
Location: Manchester
Posts: 157
Originally Posted by smokey View Post
Originally Posted by LizziesMama View Post

According to the American Pregnancy Association - Chemical pregnancies may account for 50-75% of all miscarriages. This occurs when a pregnancy is lost shortly after implantation, resulting in bleeding that occurs around the time of her expected period.

Also -

An over the counter HPT (as opposed to this supposed test in labs) CANNOT detect HCG before implantation.

According to - When an egg is fertilized, it takes about 6 to 12 days to implant in the uterus, and then it begins to secrete hCG. It takes another day or two for enough hCG to build up and make its way into your pee. So, generally speaking, the earliest you can expect a positive HPT is 8 days past ovulation ("DPO") and the latest would be about 16 DPO. It is possible to get a positive test earlier or later, but not as common.
A chemical pregnancy occurs when a fertilized egg does not implant into the uterine wall. If a pregnancy test is taken just at the right time it will be positive, however, when a repeat test is taken several days later it will be negative.
Chemical pregnancies also more recently covers extremly early misscariages ie within a day or two of implantation.
So chemical pregnancies covers both, anything that can only be picked up by chemical testing ie hormone strips and blood tests but cant yet be detected by ultra sound (it then becomes a clinical pregnancy)

HCG is produced on fertalisation but is increased massivly once implantation happens hence why most tests cant pick it up till a few days after implantation but its possible to pick it up before implantation.
At the time of my chemical and my following pregnancy I was undergoing strict observations so I knew the time of ov, the time of conception so I knew how many dpo I was when I had my chemical and my following pregnancy
Sorry to bring up an old post but this literally just happened to me and I've been stumped until I found this post! I did a hpt at 5dpo (I no very silly of me) and I got a positive. I posted it on another forum to be tweaked but it didn't need it. It was very pink for 5dpo I carried on testing and got negative tests until 9dpo and got another positive. 13dpo and my test is blaring! All I can think was I tested at the time my egg was fertilised but hadn't implantated and then it finally did. I used the 10miu cheapies.

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