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HPT Negative and Pregnancy Still Possible
I am 13 DPO and my HPT is negative. Could I still be pregnant?
Even with a negative pregnancy test before missing a period there is still a good chance that you are pregnant. About one-half of pregnant women have a negative HPT pregnancy test on 12 dpo, and one-third of pregnant women test negative on 13 DPO.
Go ahead a do a pregnancy test as early as you want, just don't expect it to be positive even if you are pregnant. One in 4 pregnant women will not get a positive pregnancy test until the days after they miss a period. That's why most doctors recommend to do a pregnancy test only after you miss your period so you won't be confused by a negative test.
Pregnancy testing before a missed period can often give you a "false negative" pregnancy test, a pregnancy test that's negative when in fact you are pregnant. The #1 reason for a false negative HPT is testing too early.
A home pregnancy test (HPT) done 1-2 days before a missed period is positive in only 1 in 2 pregnant women, and even on the day of a missed period 1 in 4 women will have a negative pregnancy test.
Testing after a missed period will often give you a better answer to you question: "Am I pregnant?".
So why does it take sometimes that long for a positive pregnancy test?
•You miscalculated when you ovulated and when you expect your period.
•Implantation could have taken longer than expected.
•You did not ovulate at all and that's why your period did not come.
Early Positive Pregnancy Test
When the pregnancy test first becomes positive depends on several variables and there is a wide variation of when it becomes positive. These variables determine when the home urine pregnancy test becomes positive:
1.Timing of Implantation
2.Blood hCG level
3.Urine hCG level (eg.how concentrated or diluted the urine is)
4.Sensitivity of the pregnancy test
Implantation, when the fertilized egg implants into the endometrium, happens about a 9 days after ovulation and fertilization (range: 6-12 days).
A pregnancy test no matter if it's blood or urine, only becomes posiitive after implantation, after the fetus has attached to the uterine wassl and connects with the mother's blood system.
If you are pregnant, then the blood pregnancy test is usually positive within 3-4 days after implantation or about 10-11 days after fertilization and ovulation. The urine pregnancy test is positive several days after the blood test becomes positive.
Had a negative pregnancy test? Read HERE more what your chances are to still be pregnant after a negative pregnancy test.
Despite what many manufacturers of urine pregnancy tests want you to believe, the urine pregnancy test however will usually not become positive in most women until about a week after implantation, around the time of a missed period.
1. Timing of Implantation A pregnancy test detects the presence of the pregnancy hormone hCG (human chorionic gonadotropin) either in the blood or in the urine. The hCG in the urine comes from the hCG in the blood after it was filtered through the kidney. After ovulation, the egg gets fertilized and travels through the fallopian tube toward the uterus. This travel takes on average about a week. Implantation, the attachment of the fertilized egg in the lining of the uterus, occurs on average about a week or later after ovulation/fertilization, but it can happen as early as six days and as late as 12 days after fertilization/ovulation. At the time of implantation, the placenta starts making the pregnancy hormone hCG, which then enters the blood stream. hCG can be detected in the blood about three to four days after implantation. Urine hCG can be detected about two to three days after blood hCG can first be seen. Detection of hCG depends on timing of implantation, so hCG can normally be detected in the blood between nine and 16 days after ovulation (HPT: 12-19 days after ovulation).
2. Blood hCG Level There is a wide normal variation of hCG levels, both in the blood and the urine. If a woman has low blood hCG levels, for example, then it can take several more days for it to show up on a pregnancy test.
3. Urine hCG Level Urine hCG levels change over the course of the day depending on how much you drink and how diluted or concentrated the urine is. Urine pregnancy testing is best done with more concentrated urine. If you drink a lot of fluid, the urine may be too diluted early on in pregnancy to achieve an hCG concentration adequate enough for a positive test.
4. Sensitivity of Pregnancy Test Different pregnancy tests have different sensitivities. The lower the sensitivity, the earlier a pregnancy test becomes positive. Sensitivities are indicated in mIU/mL, the lowest amount of hCG in the urine that tests positive. A sensitivity of 20 mIU/mL requires one-half the hCG level to be positive when compared with a 40 mIU/mL sensitivity level, and it may become positive several days earlier than the pregnancy test with a higher sensitivity. Make sure you read the package of the pregnancy test to determine your pregnancy test's sensitivity
I am 13 DPO and my HPT is negative. Could I still be pregnant?
Even with a negative pregnancy test before missing a period there is still a good chance that you are pregnant. About one-half of pregnant women have a negative HPT pregnancy test on 12 dpo, and one-third of pregnant women test negative on 13 DPO.
Go ahead a do a pregnancy test as early as you want, just don't expect it to be positive even if you are pregnant. One in 4 pregnant women will not get a positive pregnancy test until the days after they miss a period. That's why most doctors recommend to do a pregnancy test only after you miss your period so you won't be confused by a negative test.
Pregnancy testing before a missed period can often give you a "false negative" pregnancy test, a pregnancy test that's negative when in fact you are pregnant. The #1 reason for a false negative HPT is testing too early.
A home pregnancy test (HPT) done 1-2 days before a missed period is positive in only 1 in 2 pregnant women, and even on the day of a missed period 1 in 4 women will have a negative pregnancy test.
Testing after a missed period will often give you a better answer to you question: "Am I pregnant?".
So why does it take sometimes that long for a positive pregnancy test?
•You miscalculated when you ovulated and when you expect your period.
•Implantation could have taken longer than expected.
•You did not ovulate at all and that's why your period did not come.
Early Positive Pregnancy Test
When the pregnancy test first becomes positive depends on several variables and there is a wide variation of when it becomes positive. These variables determine when the home urine pregnancy test becomes positive:
1.Timing of Implantation
2.Blood hCG level
3.Urine hCG level (eg.how concentrated or diluted the urine is)
4.Sensitivity of the pregnancy test
Implantation, when the fertilized egg implants into the endometrium, happens about a 9 days after ovulation and fertilization (range: 6-12 days).
A pregnancy test no matter if it's blood or urine, only becomes posiitive after implantation, after the fetus has attached to the uterine wassl and connects with the mother's blood system.
If you are pregnant, then the blood pregnancy test is usually positive within 3-4 days after implantation or about 10-11 days after fertilization and ovulation. The urine pregnancy test is positive several days after the blood test becomes positive.
Had a negative pregnancy test? Read HERE more what your chances are to still be pregnant after a negative pregnancy test.
Despite what many manufacturers of urine pregnancy tests want you to believe, the urine pregnancy test however will usually not become positive in most women until about a week after implantation, around the time of a missed period.
1. Timing of Implantation A pregnancy test detects the presence of the pregnancy hormone hCG (human chorionic gonadotropin) either in the blood or in the urine. The hCG in the urine comes from the hCG in the blood after it was filtered through the kidney. After ovulation, the egg gets fertilized and travels through the fallopian tube toward the uterus. This travel takes on average about a week. Implantation, the attachment of the fertilized egg in the lining of the uterus, occurs on average about a week or later after ovulation/fertilization, but it can happen as early as six days and as late as 12 days after fertilization/ovulation. At the time of implantation, the placenta starts making the pregnancy hormone hCG, which then enters the blood stream. hCG can be detected in the blood about three to four days after implantation. Urine hCG can be detected about two to three days after blood hCG can first be seen. Detection of hCG depends on timing of implantation, so hCG can normally be detected in the blood between nine and 16 days after ovulation (HPT: 12-19 days after ovulation).
2. Blood hCG Level There is a wide normal variation of hCG levels, both in the blood and the urine. If a woman has low blood hCG levels, for example, then it can take several more days for it to show up on a pregnancy test.
3. Urine hCG Level Urine hCG levels change over the course of the day depending on how much you drink and how diluted or concentrated the urine is. Urine pregnancy testing is best done with more concentrated urine. If you drink a lot of fluid, the urine may be too diluted early on in pregnancy to achieve an hCG concentration adequate enough for a positive test.
4. Sensitivity of Pregnancy Test Different pregnancy tests have different sensitivities. The lower the sensitivity, the earlier a pregnancy test becomes positive. Sensitivities are indicated in mIU/mL, the lowest amount of hCG in the urine that tests positive. A sensitivity of 20 mIU/mL requires one-half the hCG level to be positive when compared with a 40 mIU/mL sensitivity level, and it may become positive several days earlier than the pregnancy test with a higher sensitivity. Make sure you read the package of the pregnancy test to determine your pregnancy test's sensitivity
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