When Can Pregnancy Be Detected?

when can pregnancy be detected at the earliest

Although being pregnant is an amazing process, waiting for the pregnancy to happen is hard. In truth, the waiting process can actually try a person’s perseverance.

You become pregnant when an egg is released and fertilized by a sperm. However, it is impossible to inform whether you are pregnant the moment it occurs. This is because pregnancy is just detectable after you start secreting human chorionic gonadotropin (HCG). This only happens when the egg is attached on the uterus walls. Simply puts, you can just test positive for a pregnancy once the fertilized egg has implanted into the uterus sending out appropriate quantities of the HCG hormone into the blood stream. In basic, after how many days of sex can pregnancy be discovered? How can you tell if you are pregnant or not? Very often you can ask yourself how soon can pregnancy be detected by blood test, by abdominal ultrasound, by pelvic exam, after ovulation, by home test, as early, soon after intercourse, etc.

After How Many Days Can Pregnancy Be Detected?

There are two types of pregnancy tests that will determine whether you should begin getting ready for a new member of the family or not.

Blood Test

There are two kinds of blood tests. Quantitative HCG and Qualitative HCG. The good idea about a blood test is that you can take the test within 7 to 12 days of having vulnerable sex. This means it is more reliable than the urine test. Nevertheless, the results take longer. This is since your doctor will have to take your blood sample to the lab for testing.

While the quantitative test determines the exact amount of HCG hormone in your blood, qualitative discovers the presence of the hormone. Usually, if you are pregnant, the blood test results test positive within 3-4 days after implantation, or 9-10 days after fertilization and ovulation.

Urine Test

This is the easiest pregnancy test also called Home HPT test. With the test, the urine has to come into contact with a special stick. You either dip the stick in a cup of urine or urinate directly onto the stick. After a few minutes, an indicator on the stick will show whether you are pregnant or not. Fortunately, this test can be done in your home and as soon as you miss your durations.

The downside of utilizing this home test is that it is not always positive. Nevertheless, produces desire you to believe its results are constantly favorable even prior to a missed out on period while in reality, just 25 % of ladies who use this test favorable within the first 2 days before a missed period.

40% test favorable the day prior to the missed out on duration. All in all, on average, many women test positive 13.5 days after ovulation or at the time they anticipate their month-to-month periods.

Notes: Even with the above tests, the very best time to have a pregnancy test is normally 3 weeks after you have had unguarded sex or when your durations are late. This is due to the fact that the results may end up unfavorable if you check too early even if you are pregnant. For this reason, it is suggested to check a few days for a more proper outcome.

Are Pregnancy Tests Always Accurate?

Although most of the home tests declare to be 99 % precise on the day you miss your duration, a doctor’s test will always be right. Research has actually also revealed that pregnancy tests do not constantly identify pregnancy early. In truth, home tests are thought about trustworthy if used according to the bundle guidelines precisely one week after a missed duration.

Nonetheless, there are instances where pregnancy tests produce false positives and negatives. Although these circumstances are uncommon, they still occur in specific circumstances that may result in incorrect favorable outcomes. For instance

Although the false negatives are more typical than false positives, most of them are as a result of user mistakes such as:

  • The test has passed its expiration date
  • Taking the test prematurely
  • You did not follow the instructions on the test kit
  • Using diluted urine (It is important that you take the test after you wake up. At this time, urine is more focused).

Which Factors Influence the Test Results?

  • Timing of implantation. Although a pregnancy test mainly counts on HCG presence, timing of implantation might lead to a damaging test as it takes about a week for the egg to attach to the uterus wall. Therefore, taking a pregnancy test too early will certainly lead to damaging outcomes.
  • Urine HCG level. HCG levels in urine changes depending on just how much you consume. If you take overwhelming fluid, this is most likely to result in water down urine that is not good for a pregnancy test. More focused urine has favorable outcomes.
  • Blood HCG level. If a lady has low levels of the HCG hormone in their blood, the test might take longer to reveal positive results. This is due to the fact that there is a variation of HCG levels thus influencing the precision of the pregnancy test.
  • Level of sensitivity of the early urine HPT. Various HPTs have different level of sensitivities. For this factor, it is a good idea to check out the guidelines on your test kit to determine its level of sensitivity before utilizing it.


Some medications can impact test results, including:

  • promethazine – utilized to treat conditions such as allergies
  • medicines used to treat Parkinson’s illness
  • sleeping tablets (hypnotics).
  • tranquillisers.
  • diuretics (medicines that increase the quantity of urine produced) – used to deal with conditions such as cardiac arrest.
  • anticonvulsants (medications that avoid seizures or fits) – utilized to deal with conditions such as epilepsy.
  • medicines utilized for infertility.

If you’re taking any medication, the patient details brochure that includes it will inform you if it affects test results. You can also ask a pharmacist.


Updated: October 23, 2016 — 8:20 am

The Author

Reyus Mammadli

Healthy lifestyle advisor. Bachelor Degree of Medical Equipment and Electronics.
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