How early can you detect pregnancy through blood test?

Question

How early and is this a common procedure?

Answer 1

The day after implantation the HCG level would be going up. This would be a week before you missed your period and I dont think most doctors would do a blood test that early since 50% of fertilized eggs that begin to implant will not do so properly. Once you've missed your period the egg has implanted and the miscarriage rate goes down to 15-25%. I took a very early home pregnancy test and got a positive result 7 days past ovulation, the day after implantation. My doctor gave me these statistics and said he wouldn't see me until I had skipped my period. With this pregnancy I didn't take a test until I missed my period. Alot of women never know they were pregnant because they think they are having a period when it's actually an early miscarriage.

Answer 2

No test blood or urine can detect a pregnancy until the egg has implanted. Implantation happens 6-12 says after ovulation and it takes about 24 hours after that for the levels to be high enough to detect through the blood (it takes about 48 for the levels to be detectable in urine).

Ovulation does not necessarily happen at any set time in your cycle.

http://www.peeonastick.com/hptfaq.html#1
Well, first you gotta know how the test works. Briefly: the home pregnancy test (HPT) works by detecting a hormone called human chorionic gonadotropin (hCG.) 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. In my experience, if you use a sensitive "early" test (anything that detects 25 mIU/mL of hCG or less) you can test around 12-14 DPO and feel reasonably secure with your results (the later you test, the more secure you can feel in its accuracy.)

If you do not chart or monitor your fertility in any way, and you think you may have conceived, you should wait 19 days (or longer) after having sex to test. Why 19?! Sperm can live approximately 5 days in the proper environment; if the sperm managed to live until you popped an egg, the actual conception could have taken place several days after the sex act that got the sperm there. To make sure you're not testing too early, assume the sperm had very long lives (5 days is considered a very long sperm life) and that conception occurred then. Then allow 14 days for the embryo to implant and develop enough hCG to show up on a pregnancy test (96% of pregnant women will test positive by then.)

Note: some HPT's say "test 5 days before your period is due!" or some such thing. Please note they are assuming a textbook 28-day cycle, with ovulation on Day 14. "5 days before your period is due" thus really "translates" to 10 DPO.

Essentially, you should remember that your high school biology textbook was WRONG. NOT all women have 28-day cycles and NOT all women ovulate on Day 14. For more info on this type of thing, see the Fertility Info section.

Answer 3

Both tests detect HCG, or human chorionic gonadotropin. This is the hormone made in your body after an egg is fertilized and starts to grow into a pregnancy. HCG can be found in your blood or urine within two weeks after conception.

Answer 4

what is the name of the test to detech if pregnant threw your blood