How long after implantation can you get a Positive Pregnancy Test

​Implantation bleeding is one of the earliest symptoms of Pregnancy. But the best way to confirm if pregnant or not is to take a pregnancy test after implantation.

A blood pregnancy test gives a positive result 3-4 days after implantation. A urine based pregnancy test gives a positive pregnancy result 4-5 days after implantation has occurred.

If counting from ovulation or conception date, blood test can detect pregnancy 10 - 11 days after conception. While urine test detect pregnancy 12-14 days after conception.

There are various types of pregnancy test, some are more sensitive than others.

Getting a positive pregnancy test after implantation is dependent on 2 factors:

How Implantation WOrks

Implantation is the process by which the fertilised egg attaches itself to the lining of the uterine walls.

Implantation usually occurs 6 to 12 days after conception.​

You can only get a positive test after a successful implantation.

Ovulation happens around day 12-day 16 of the menstrual cycle.

When a matured egg is released during implantation, it can only survive for 12-24 hours.

If the egg is fertilised by a sperm, conception occurs.

The fertilised egg starts to divide rapidly into ​multiple cells as it travels down the fallopian tube slowly.

It takes the fertilised egg 6 -7 after conception to get to the uterus(womb).

The next step for the blastocyst is to attach itself to the walls of the uterine lining in other to grow and develop.

After a successful embryo implantation. The embryo will divide into 2 different parts: Placenta and fetus. The role of the placenta is to supply essential nutrients to the growing baby.

After implantation, the placenta produces a pregnancy hormone called HCG.

HOW LONG AFTER IMPLANTATION DOES HCG RISE

HCG level doubles every 48 -72 hours after implantation. It will continue to rise until week 10 -12 of pregnancy. It then drops off after that to remain at a constant level.

Here is a guideline of what HCG level by pregnancy week should be:

HCG levels under 5mIU/ml gives a negative test result.

By week 5 of pregnancy (from your last menstrual period), HCG levels should be between 18 - 7340 mIU/ml.

Implantation Bleeding Negative pregnancy test

It is possible to have brown spotting or light spotting before your period and still get a negative pregnancy test.

This could happen if you didn't wait long enough before testing. A false pregnancy test happens if you test for pregnancy too early before HCG level is high enough to be detectable by most urine or HPTs.

It is generally recommended to wait a week after a missed period before testing.

HOW LONG AFTER IMPLANTATION DOES BLEEDING OCCUR

Implantation bleeding occurs around 6- 12 days after ovulation.  This is around a week to a few days before your expected period.

Not all women experience implantation bleeding. So you may still be pregnant and not have any form of spotting before your period is due to start.

Can you take a pregnancy Test when you have implantation bleeding

Don't take a pregnancy test immediately you see implantation bleeding. Wait a few more days or a week after a missed period to test.

Taking a pregnancy test during implantation bleeding can yield a false or negative test result. This is because the pregnancy hormone produced by the placenta after implantation isn't high enough to be picked up by early pregnancy detection test. 

Two weeks after implantation bleeding negative pregnancy test

There are many reasons for a negative pregnancy test.

Some of the common reasons are:

• You are pregnant but your pregnancy hormone is not high enough​
• You are not pregnant, you had light spotting before period for other reasons

• The pregnancy test is not working properly

• There is something wrong with your pregnancy

If I have implantation bleeding will pregnancy test be positive

It takes about  2 -3 days after implantation for most sensitive pregnancy test such as with the first response test to be able to detect pregnancy.  

If you have a negative test result after implantation, It is because your HCG level is not high enough. Wait a couple of more days to test.​

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