Q: i had a quantitative hcg test done and my results were <1. what does that mean? i had it done 3 weeks and 2 days after intercourse.

U r NOT pregnant: This long after intercourse the ball of cells would have implanted in the uterine wall and have been pumping out ever increasing amounts of human chorionic gonadotrophin. The fact that the assay could not even detect even 1 unit implies that you have no functioning placenta growing - i.e. no pregnancy!

Q: can i be pregnant if my hcg is 1.1 just 2 weeks after intercourse?

Non pregnant level: Hcg of 1.1 is a non pregnant level. However, you need to test once you miss your cycle, not in relation to intercourse.

Q: when should i take blood quantitative beta hcg test after intercourse/sex?is it accurate enough if i do that 2 weeks after intercourse/sex?

3 wks after sex: There is no need to rush. A pregnancy test gives a reliable result 3 weeks after sex (3 wks after when conception might have occurred), or 1 week after missing a period. If done sooner, a positive result is likely real, but a negative result may be due to testing too soon, and thus lead to a repeat test. If a woman gets her normal regular period, then she is not pregnant, and a test isn't needed.

Q: how fast-or how many days does it take for hcg to be produced for it to show up in a urine home pregnant test? would a day after intercourse be too soon?

At menses: Since most home urine pregnancy tests detect the HCG at levels above 25-30, and HCG levels are approximately 100 at the time of expected menses, a home test can usually detect a pregnancy 1-2 before expected menses. Blood tests are more sensitive detecting HCG levels above 5.

Question 1

had 2 beta hcg test 4 and 6 weeks after intercourse(took plan b morning after). both results were less than 2. can i still be pregnant?

Accepted Answer

Unlikely: it is unlikely that you are pregnant with two negative beta subunit tests

Question 2

i took a blood test approximately 4 weeks after intercourse, or 3 weeks after my first missed period. the b-hcg blood test was negative. i read ectopic pregnancy have a delay in producing b-hcg test. was the blood test taken early ? missed 2 perisos?

Accepted Answer

: A pregnancy test after a missed period is highly accurate.

Question 3

can hcg rise really, really fast to get a positive result  the day after intercourse?

Accepted Answer

No: Hcg is not secreted until implantation which is 5-10 days after fertilization.  If you have a positive result that quickly you were already pregnant.

Question 4

is serum hcg test accurate at 14 days after intercourse?

Accepted Answer

: Most likely. About 9 days or so after conception will a serum HCG become positive, on average. However, not EVERYONE is average. Hope this helps.

Question 5

would implantation have to occur first (within 7 days after intercourse) for an hcg level to reach 634?

Accepted Answer

Yes: Implantation must occur before HCG can be produced in amounts to be detected in urine or blood. Other possible reasons for detectable HCG without being pregnant are unusual but can involved detecting injected hcg, some rare tumors, and others.

Question 6

if a woman has low levels of hcg, can it still be detected in a blood test at 3 and a half weeks after intercourse?

Accepted Answer

: Yes, it should be detected but the level should be less than 5 if there is no conception.

Question 7

i had a quantitative hcg test done and my results were <1. what does that mean? i had it done 3 weeks and 2 days after intercourse.

Accepted Answer

U r NOT pregnant: This long after intercourse the ball of cells would have implanted in the uterine wall and have been pumping out ever increasing amounts of human chorionic gonadotrophin.  The fact that the assay could not even detect even 1 unit implies that you have no functioning placenta growing - i.e. no pregnancy!

Question 8

can i be pregnant if my hcg is 1.1 just 2 weeks after intercourse?

Accepted Answer

Non pregnant level: Hcg of 1.1 is a non pregnant level. However, you need to test once you miss your cycle, not in relation to intercourse.

Question 9

when should i take blood quantitative beta hcg test after intercourse/sex?is it accurate enough if i do that 2 weeks after intercourse/sex?

Accepted Answer

3 wks after sex: There is no need to rush. A pregnancy test gives a reliable result 3 weeks after sex (3 wks after when conception might have occurred), or 1 week after missing a period. If done sooner, a positive result is likely real, but a negative result may be due to testing too soon, and thus lead to a repeat test. If a woman gets her normal regular period, then she is not pregnant, and a test isn't needed.

Question 10

how fast-or how many days does it take for hcg to be produced for it to show up in a urine home pregnant test? would a day after intercourse be too soon?

Accepted Answer

At menses: Since most home urine pregnancy tests detect the HCG at levels above 25-30, and HCG levels are approximately 100 at the time of expected menses, a home test can usually detect a pregnancy 1-2 before expected menses.  Blood tests are more sensitive detecting HCG levels above 5.

Get Virtual Care

For Businesses

About Us

HealthTap Online Primary Care Doctors Accepting New Patients

Doctor answers about:

HCG 4 weeks after intercourse

A member asked:

Had 2 beta hcg test 4 and 6 weeks after intercourse(took plan b morning after). both results were less than 2. can i still be pregnant?

A member asked:

I took a blood test approximately 4 weeks after intercourse, or 3 weeks after my first missed period. the b-hcg blood test was negative. i read ectopic pregnancy have a delay in producing b-hcg test. was the blood test taken early ? missed 2 perisos?

A member asked:

Can hcg rise really, really fast to get a positive result the day after intercourse?

A member asked:

Is serum hcg test accurate at 14 days after intercourse?

A member asked:

Would implantation have to occur first (within 7 days after intercourse) for an hcg level to reach 634?

A member asked:

If a woman has low levels of hcg, can it still be detected in a blood test at 3 and a half weeks after intercourse?

A member asked:

I had a quantitative hcg test done and my results were <1. what does that mean? i had it done 3 weeks and 2 days after intercourse.

A member asked:

Can i be pregnant if my hcg is 1.1 just 2 weeks after intercourse?

A member asked:

When should i take blood quantitative beta hcg test after intercourse/sex?is it accurate enough if i do that 2 weeks after intercourse/sex?

A member asked:

How fast-or how many days does it take for hcg to be produced for it to show up in a urine home pregnant test? would a day after intercourse be too soon?

HealthTap Online Primary Care Doctors Accepting New Patients

Telemedicine

Primary Care

Manage Your Conditions

Women's Health

Children's Health

Men's Health

Senior Health

Wellness, Prevention & Lifestyle

Sexual Health

Mental & Behavioral Health

Travel Medicine

Urgent Care

Didn't find what you're looking for?

More of what we treat

Allergies

Antibiotics

Asthma

High Blood Pressure

Prescriptions

Type 2 Diabetes

For Businesses

Company

Health Content

Join Us

Download HealthTap

Questions?